"invalid path data" raised when copying text

[good guy]

Inkscape 0.92.2 5c3e80d, 2017-08-06
OpenSuse Leap 43.3
to reproduce:
new document, insert text, select it, ctrl-C (copy) it. error raised every time:
================
Traceback (most recent call last):
  File "ink2canvas.py", line 22, in <module>
    import ink2canvas.svg as svg
  File "/usr/share/inkscape/extensions/ink2canvas/svg.py", line 21, in <module>
    from simplepath import parsePath
  File "/usr/share/inkscape/extensions/simplepath.py", line 51
    raise Exception, 'Invalid path data!'
                   ^
SyntaxError: invalid syntax
================
i suspect this to happen, because all text (in this version of inkscape) is generated with line-spacing=0% and drop-down is grayed out, so cannot be changed.

[good guy (goodguy00)]

hmm ... this afternoon, i had 100% reproducibility. i did not restart the pc, there was no automatic update, i had the same document open, and now after 6 hours just being there, it does not occur anymore. restarted inkscape, not there. no idea, what happend. still line-spacing=0%, dropdown still grey. don't understand this.