Apologies for the late reply, I hope these comments are still relevant.
The gimp already makes some alterations to the the File Chooser, how about
altering it further to include a Location text entry box by default again
and avoid the issue of the clashing Ctrl+L keybinding entirely?
I believe Inkscape has already do so.
It also is a remote possibility (but a possiblity nonetheless) that the
default might be changed to include a Location text entry again, if the
gimp developers were to add their opinion it might be more likely to
Inkscape, Draw Freely http://inkscape.org
Free SVG Clip Art http://OpenClipArt.org
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