[ubuntu] 16.04: Opens Wrong Application (NOT Nautilus) after Mount

Hi Guys,

I just (clean-) installed 16.04 on my desktop (as well as notebook) and encounter a weird behavior.
Whenever I mount anything (e.g., an exteal memory stick or a truecrypt-drive), ubuntu does not open nautilus and display the content, as one would expect, but it opens "SmartSVN", which happens to be my SVN-GUI (http://www.smartsvn.com/). It does this on both my clean 16.04 installations. SmartSVN, can, of course, do nothing with the mounted file and just displays an error. I then have to close it, open the file explorer/nautilus and click there on my mounted drive, which I can then access without problems.

I tried to google, but can't find how to fix this... As a workaround, i used the dconf-editor to disable the "automount-open" feature, which prevents SmartSVN being launched upon a mount event. I then just have to manually open the mounted folder via nautilus.

Does anyone have an idea of how to fix this?

Cheers and Thanks!