Comment 1 for bug 1433107

Confirmed on Crunchbang Waldorf, Inkscape trunk rev. 14016.

The connector's path is automatically recalculated each time one of the linked shapes moves, based on the inkscape:connection-end and inkscape:connection-start attributes.

As a workaround, you can reverse the path by inverting the values of inkscape:connection-end and inkscape:connection-start. Doing so automatically when the Path>Revert command is used could be a possible fix.