Comment 4 for bug 1429932

Reproduced with Inkscape 0.91 r13725 and 0.91+devel r14178 on OS X 10.7.5 - results are incorrect (randomly smaller AFAICT) except for the first generated label if units other than 'px' are used.

Steps to reproduce:
1) launch inkscape
2) draw horizontal line
3) duplicate and move line several times
4) select all > measure path

Only with 'px' the result is as expected - with any other unit, just the first (in stack order) created measurement label has the expected value, the rest seem to have random values (or '0'), unrelated to the length of the path they are put on.

Not reproduced with Inkscape 0.48.5.