Happens in stable too, if document uses viewBox attribute:
$ diff 1247799-A4-no-viewBox.svg 1247799-A4.svg 12c12,13 < height="297mm"> --- > height="297mm" > viewBox="0 0 210 297">
Trunk adds a viewBox attribute if the default units are changed since revision 12554.
Happens in stable too, if document uses viewBox attribute:
$ diff 1247799- A4-no-viewBox. svg 1247799-A4.svg
12c12,13
< height="297mm">
---
> height="297mm"
> viewBox="0 0 210 297">
Trunk adds a viewBox attribute if the default units are changed since revision 12554.