Please describe the problem:
If you delete a bookmarked dir, the bookmark points to the dir in trash.
When you recreate that dir on its original location, and want to navigate to the
new dir using the old bookmark, you end up in the Trash.
If you do this while copying or saving files, you put them into the trash and
run the risk of severe dataloss.

Steps to reproduce:
1. create a dir and enter it 
2. bookmark the dir
3. remove the dir
4. navigate to the dir using the bookmark


Actual results:
now you are in  the trash

Expected results:
if the dir is recreated, I want to navigate to the new dir. I not, I want to get
a warning that the directory has been removed.

Does this happen every time?
yes

Other information:
this scenario is not artificial. I work at 2 locations on my PhD thesis. When I
synchronise one of these with the other, I remove the dir and copy it from my
other computer. When I do this, my bookmark points to the Trash!