text-on-path size changes if you change default document units

[Alvin Penner]

- Windows XP, Inkscape rev 12991
- the attached file has some text on path, document units are px
- if you change the document units to mm then the size of the text will change and possibly the number of letters of text will also change

[su_v (suv-lp)]

Not reproduced with r12991 and latest r13026 on OS X 10.7.5 with default (new) prefs, locale en_US.UTF-8, using the attached sample file and when recreated from scratch in new document.

Erratic behavior reproduced after changing default preferences to always use 'preserved' transforms (r12991, r13026). Can you confirm that the behavior is related to how transforms are stored?

[su_v (suv-lp)]

With preferences set to 'preserved' transforms, based on tests with archived builds on OS X 10.7.5:
- not reproduced with rev <= 12552
- reproduced with rev >= 12555
this regression likely is related to the merge of the GSoC 2013 unit improvement branch in
<http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/12554>

[Alvin Penner (apenner)]

>> Can you confirm that the behavior is related to how transforms are stored?

yes, same behaviour here, the unexpected behaviour occurs only if I use the option "Preserved Transforms"

[Tavmjong Bah (tavmjong-free)]

The initial change of unit results in a transform (scale) being added to the text element. Further changes to the unit do not change the transform.

[Alvin Penner (apenner)]

fix committed to rev 13566