Reproduced on Windows XP, Inkscape trunk revision 12593 (default preferences).
Works as expected with File>Open, but not with File>Import.
Console message:
-----
Error: Couldn't open file 'C:\SVG\B5:AB.pdf': No such file or directory.
terminate called after throwing an instance of 'Inkscape::Extension::Input::open_cancelled'
what(): Open was cancelled
Reproduced on Windows XP, Inkscape trunk revision 12593 (default preferences).
Works as expected with File>Open, but not with File>Import.
Console message: :Extension: :Input: :open_cancelled '
-----
Error: Couldn't open file 'C:\SVG\B5:AB.pdf': No such file or directory.
terminate called after throwing an instance of 'Inkscape:
what(): Open was cancelled