'ufw status' doesn't always show app rules

[rrrand]

Some rules disappear after 'ufw app update all'.
Ufw versions 0.35 and 0.36 have the same behaviour and I could not have found about it in manuals.

How to check:

0) Add application MyApp somewhere in /etc/ufw/applications.d/.

1) Append rules
ufw allow from 192.168.1.0/24 to 192.168.1.0/24 app MyApp
ufw allow out from 192.168.1.0/24 to 192.168.1.0/24 app MyApp

(those rules have the only difference: direction out.)

2) Then call
ufw app update all

3) The second rule will disappear.

The next link is about the same
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931125

[Jamie Strandboge (jdstrand)]

What I observe is that with the second command, the app rule isn't added at all even though ufw said it was. Ie:

$ sudo ufw allow from 192.168.1.0/24 to 192.168.1.0/24 app OpenSSH
Rules updated
$ sudo ufw allow out from 192.168.1.0/24 to 192.168.1.0/24 app OpenSSH
Rules updated
$ sudo ufw status
Status: active

To Action From
-- ------ ----
192.168.1.0/24 OpenSSH ALLOW 192.168.1.0/24

[Jamie Strandboge (jdstrand)]

Looking at this, the rules are correctly being added to /etc/ufw/user.rules. ufw show raw shows:

...
Chain ufw-user-input (1 references)
    pkts bytes target prot opt in out source destination
       0 0 ACCEPT tcp -- * * 192.168.1.0/24 192.168.1.0/24 tcp dpt:22 /* 'dapp_OpenSSH' */

...
Chain ufw-user-output (1 references)
    pkts bytes target prot opt in out source destination
       0 0 ACCEPT tcp -- * * 192.168.1.0/24 192.168.1.0/24 tcp dpt:22 /* 'dapp_OpenSSH' */
...

so the rules are correctly being added to both chains. Using 'ufw status verbose' also shows the rules:

$ sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip

To Action From
-- ------ ----
192.168.1.0/24 22/tcp (OpenSSH) ALLOW IN 192.168.1.0/24

192.168.1.0/24 22/tcp (OpenSSH) ALLOW OUT 192.168.1.0/24

The problem is that for app rules, 'ufw status' isn't showing the output rules. If I use non-app rules, I can see that 'ufw status' shows the output rules correctly:

$ sudo ufw status
Status: active

To Action From
-- ------ ----
192.168.1.0/24 22/tcp ALLOW 192.168.1.0/24

192.168.1.0/24 22/tcp ALLOW OUT 192.168.1.0/24