Measure tool creates multiple measurements when switching document window while tool active

[su_v]

Steps to reproduce:

1) launch current trunk (default prefs, default new doc)
2) open a second document window (Ctrl+N)
3) arrange the two document windows side by side
4) in New document 1: switch to the measure tool, start measuring
5) repeat step 5 in New document 2
6) repeat several times while keeping the measure tool the active tool in both windows:
switch document window (Ctrl+TAB), click and drag on the canvas

With each switch of document window (desktop), the earlier measure path is retained, and a new one is drawn. The remnants of the the earlier measurement are persistent (e.g. on zooming) and not editable. The multiple measurements of the last window closed are also present in the new default document opened after closing all open document windows (with Ctrl+W) in the current session.

First encountered (and consistently reproduced) with
 Inkscape 0.91+devel r14630 on OS X 10.7.5

[su_v (suv-lp)]

Random screenshot of reported issue (Inkscape 0.91+devel r14630 on OS X 10.7.5)

[Jabiertxof (jabiertxof)]

Thanks su_v I just fix it and commit to trunk.

[su_v (suv-lp)]

JFTR: fix was committed in rev 14632.
Closing as 'Fix Released' since the issue did not affect a stable release version.

@Jabiertxof - thx a lot!