Looking for review for "tdf#129532 tdf#98839 fixes for mirror of custom shapes"

[Regina Henschel]

Hi all,

I'm looking for review for
tdf#129532 tdf#98839 fixes for mirror of custom shapes
https://gerrit.libreoffice.org/c/core/+/85670

If you test it, you will find, that Calc still has problems with 
mirrored and rotated shapes. I think, that can only be addressed, if the 
underlying parts are correct. So please look, whether my changes are 
really correct.

Kind regards
Regina