I have the same problem and managed to identify the problem>> in your case, the problem is here: "/home/nicolas/file:/export/Inkscape/BugTest/EmbedTest.png", delete "file:/export/Inkscape/BugTest/", then import any image located in the same directory as this image (EmbedTest.png) or herself, now try to embed. If you import a bitmap using the tool, rather than dragging and dropping the inkscape, it seems that Inkscape use that last accessed the directory and add "file: /" + directory to import the same again.
Sorry for the grammar, translate on google ...
I have the same problem and managed to identify the problem>> in your case, the problem is here: "/home/ nicolas/ file:/export/ Inkscape/ BugTest/ EmbedTest. png", delete "file:/ export/ Inkscape/ BugTest/ ", then import any image located in the same directory as this image (EmbedTest.png) or herself, now try to embed. If you import a bitmap using the tool, rather than dragging and dropping the inkscape, it seems that Inkscape use that last accessed the directory and add "file: /" + directory to import the same again.
That really does not happen in version 0:46