crash on 'back' on clue

[themusicgod1]

1) start mnemosyne with a card deck with at least 1 vocabulary card
2) Right click->back on the clue card in a vocabulary card

result:
[1:1:0124/220357.582980:FATAL:render_frame_impl.cc(6225)] Check failed: false. Invalid URL passed: about:blank
#0 0x7f1bb7cb9aee <unknown>
#1 0x7f1bb7ccc0e2 <unknown>
#2 0x7f1bb9376042 <unknown>
#3 0x7f1bb9386ade <unknown>
#4 0x7f1bb9387438 <unknown>
#5 0x7f1bb937998f <unknown>
#6 0x7f1bb938f238 <unknown>
#7 0x7f1bbae9e08c <unknown>
#8 0x7f1bb9310fe8 <unknown>
#9 0x7f1bb8423c23 <unknown>
#10 0x7f1bb7d30a83 <unknown>
#11 0x7f1bb9635de6 <unknown>
#12 0x7f1bb963679e <unknown>
#13 0x7f1bb7d30a83 <unknown>
#14 0x7f1bb7cd4a00 <unknown>
#15 0x7f1bb7cd6058 <unknown>
#16 0x7f1bb7cd63eb <unknown>
#17 0x7f1bb7cd7491 <unknown>
#18 0x7f1bb7cd3da8 <unknown>
#19 0x7f1bb7cf077b <unknown>
#20 0x7f1bb93c7f83 <unknown>
#21 0x7f1bb7c98b0a <unknown>
#22 0x7f1bb7c98df7 <unknown>
#23 0x7f1bb7c921c9 <unknown>
#24 0x7f1bb7342b59 QtWebEngine::processMain()
#25 0x55d28bffebf3 <unknown>
#26 0x7f1bb5dabb97 __libc_start_main
#27 0x55d28bffec7a <unknown>

Received signal 6
#0 0x7f1bb7cb9f42 <unknown>
#1 0x7f1bb5dc8f20 <unknown>
#2 0x7f1bb5dc8e97 gsignal
#3 0x7f1bb5dca801 abort
#4 0x7f1bb7cb9715 <unknown>
#5 0x7f1bb7ccc3f5 <unknown>
#6 0x7f1bb9376042 <unknown>
#7 0x7f1bb9386ade <unknown>
#8 0x7f1bb9387438 <unknown>
#9 0x7f1bb937998f <unknown>
#10 0x7f1bb938f238 <unknown>
#11 0x7f1bbae9e08c <unknown>
#12 0x7f1bb9310fe8 <unknown>
#13 0x7f1bb8423c23 <unknown>
#14 0x7f1bb7d30a83 <unknown>
#15 0x7f1bb9635de6 <unknown>
#16 0x7f1bb963679e <unknown>
#17 0x7f1bb7d30a83 <unknown>
#18 0x7f1bb7cd4a00 <unknown>
#19 0x7f1bb7cd6058 <unknown>
#20 0x7f1bb7cd63eb <unknown>
#21 0x7f1bb7cd7491 <unknown>
#22 0x7f1bb7cd3da8 <unknown>
#23 0x7f1bb7cf077b <unknown>
#24 0x7f1bb93c7f83 <unknown>
#25 0x7f1bb7c98b0a <unknown>
#26 0x7f1bb7c98df7 <unknown>
#27 0x7f1bb7c921c9 <unknown>
#28 0x7f1bb7342b59 QtWebEngine::processMain()
#29 0x55d28bffebf3 <unknown>
#30 0x7f1bb5dabb97 __libc_start_main
#31 0x55d28bffec7a <unknown>
  r8: 0000000000000000 r9: 00007ffc2d6e1b70 r10: 0000000000000008 r11: 0000000000000246
 r12: 00007ffc2d6e2040 r13: 00007ffc2d6e1ff0 r14: 0000000000000000 r15: 00007ffc2d6e26a8
  di: 0000000000000002 si: 00007ffc2d6e1b70 bp: 00007ffc2d6e1fe0 bx: 00007ffc2d6e26a0
  dx: 0000000000000000 ax: 0000000000000000 cx: 00007f1bb5dc8e97 sp: 00007ffc2d6e1b70
  ip: 00007f1bb5dc8e97 efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000
 trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000
[end of stack trace]

on the console

the mnemosyne pane no longer has a clue card, and the answer is blank.

Granted it's probably not a good idea to right-click "back" on the clue...but still, this isn't how it should fail. Perhaps a 'we don't support this operation' instead or something.

mnemosyne:
  Installed: 2.4-0.1
  Candidate: 2.4-0.1
Ubuntu: bionic 18.04 LTS

[Peter Bienstman (peter-bienstman)]

As far as Mnemosyne's development is concerned, as mentioned before, please report bugs against the latest released version, 2.6.1 currently. 2.4 is really ancient, and Ubuntu should update its version.

[themusicgod1 (themusicgod1)]

Ubuntu disco 19.04 does have 2.6.1, but that doesn't change the fact that the LTS version of ubuntu has 2.4. It's not likely to be updated, outside of patches to fix issues as they come up (like this).

[Peter Bienstman (peter-bienstman)]

I don't think it makes a lot of sense to keep these old bug reports around then. Backporting fixes to 2.4 is certainly not something I intend to spend my time on :-)

[themusicgod1 (themusicgod1)]

That's fine, there's plenty of python developers out there who could
do it. The maintainer listed is

> Robert Lemmen <email address hidden>

His role is to include backported patches if he feels they are
justifiable, here. Who makes the patches is whoever fixes the problem
(that could be me, even). There are plenty of Ubuntu LTS users out
there. This is a defect in Ubuntu LTS.

On Fri, 25 Jan 2019 at 04:00, Peter Bienstman
<email address hidden> wrote:
>
> I don't think it makes a lot of sense to keep these old bug reports
> around then. Backporting fixes to 2.4 is certainly not something I
> intend to spend my time on :-)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1813238
>
> Title:
> crash on 'back' on clue
>
> Status in mnemosyne package in Ubuntu:
> New
>
> Bug description:
> 1) start mnemosyne with a card deck with at least 1 vocabulary card
> 2) Right click->back on the clue card in a vocabulary card
>
> result:
> [1:1:0124/220357.582980:FATAL:render_frame_impl.cc(6225)] Check failed: false. Invalid URL passed: about:blank
> #0 0x7f1bb7cb9aee <unknown>
> #1 0x7f1bb7ccc0e2 <unknown>
> #2 0x7f1bb9376042 <unknown>
> #3 0x7f1bb9386ade <unknown>
> #4 0x7f1bb9387438 <unknown>
> #5 0x7f1bb937998f <unknown>
> #6 0x7f1bb938f238 <unknown>
> #7 0x7f1bbae9e08c <unknown>
> #8 0x7f1bb9310fe8 <unknown>
> #9 0x7f1bb8423c23 <unknown>
> #10 0x7f1bb7d30a83 <unknown>
> #11 0x7f1bb9635de6 <unknown>
> #12 0x7f1bb963679e <unknown>
> #13 0x7f1bb7d30a83 <unknown>
> #14 0x7f1bb7cd4a00 <unknown>
> #15 0x7f1bb7cd6058 <unknown>
> #16 0x7f1bb7cd63eb <unknown>
> #17 0x7f1bb7cd7491 <unknown>
> #18 0x7f1bb7cd3da8 <unknown>
> #19 0x7f1bb7cf077b <unknown>
> #20 0x7f1bb93c7f83 <unknown>
> #21 0x7f1bb7c98b0a <unknown>
> #22 0x7f1bb7c98df7 <unknown>
> #23 0x7f1bb7c921c9 <unknown>
> #24 0x7f1bb7342b59 QtWebEngine::processMain()
> #25 0x55d28bffebf3 <unknown>
> #26 0x7f1bb5dabb97 __libc_start_main
> #27 0x55d28bffec7a <unknown>
>
> Received signal 6
> #0 0x7f1bb7cb9f42 <unknown>
> #1 0x7f1bb5dc8f20 <unknown>
> #2 0x7f1bb5dc8e97 gsignal
> #3 0x7f1bb5dca801 abort
> #4 0x7f1bb7cb9715 <unknown>
> #5 0x7f1bb7ccc3f5 <unknown>
> #6 0x7f1bb9376042 <unknown>
> #7 0x7f1bb9386ade <unknown>
> #8 0x7f1bb9387438 <unknown>
> #9 0x7f1bb937998f <unknown>
> #10 0x7f1bb938f238 <unknown>
> #11 0x7f1bbae9e08c <unknown>
> #12 0x7f1bb9310fe8 <unknown>
> #13 0x7f1bb8423c23 <unknown>
> #14 0x7f1bb7d30a83 <unknown>
> #15 0x7f1bb9635de6 <unknown>
> #16 0x7f1bb963679e <unknown>
> #17 0x7f1bb7d30a83 <unknown>
> #18 0x7f1bb7cd4a00 <unknown>
> #19 0x7f1bb7cd6058 <unknown>
> #20 0x7f1bb7cd63eb <unknown>
> #21 0x7f1bb7cd7491 <unknown>
> #22 0x7f1bb7cd3da8 <unknown>
> #23 0x7f1bb7cf077b <unknown>
> #24 0x7f1bb93c7f83 <unknown>
> #25 0x7f1bb7c98b0a <unknown>
> #26 0x7f1bb7c98df7 <unknown>
> #27 0x7f1bb7c921c9 <unknown>
> #28 0x7f1bb7342b59 QtWebEngine::processMain()
> #29 0x55d28bffebf3 <unknown>
> #30 0x7f1bb5dabb97 __libc_start_main
> #31 0x55d28bffec7a <unknown>
> r8: 0000000...

[themusicgod1 (themusicgod1)]

this is fixed in jammy/LTS