Based on tests with archived builds (rev <= 12285 uses page size (in user units), rev >= 12292 uses percentages), the fix for bug #1107924 is what changed the width/height attributes to use "100%" instead of the computed page width/height (for upcoming 0.91). The wording in the SVG 1.1 spec is still confusing to me though, and I'm not sure whether setting width/height to '100%' on "regular" clones is more correct than what earlier versions did (or whether the two attributes should be omitted completely in this use case).
Somewhat related earlier reports: thread. gmane.org/ gmane.comp. graphics. inkscape. devel/40338/ focus=40339
* <use> referencing a <symbol> element:
Bug #1107924 “Used symbols won't show in webbrowser due missing attribute.”
http://
* <use> referencing a <svg> element:
Bug #568833 “<use> with referenced <svg> must set width/height properties”
Based on tests with archived builds (rev <= 12285 uses page size (in user units), rev >= 12292 uses percentages), the fix for bug #1107924 is what changed the width/height attributes to use "100%" instead of the computed page width/height (for upcoming 0.91). The wording in the SVG 1.1 spec is still confusing to me though, and I'm not sure whether setting width/height to '100%' on "regular" clones is more correct than what earlier versions did (or whether the two attributes should be omitted completely in this use case).