Just installed a blank fenchurch with a git backend and am getting this whenever trying to add item to Collections or Discussions:

Error details: ...utnik//rocks//sputnik/9.03.16-0/lua/sputnik/init.lua:625: assertion failed! stack traceback:

[C]: in function 'assert'
...utnik//rocks//sputnik/9.03.16-0/lua/sputnik/init.lua:625: in function 'get_uid'
...putnik/9.03.16-0/lua/sputnik/actions/collections.lua:148: in function <...putnik/9.03.16-0/lua/sputnik/actions/collections.lua:141>
(tail call): ?
...utnik//rocks//sputnik/9.03.16-0/lua/sputnik/init.lua:786: in function <...utnik//rocks//sputnik/9.03.16-0/lua/sputnik/init.lua:727>

Additionally I spot a weird file in the git directory:

_uid%3ATestCollection.lua

Architecture: OS X current, apache 2 w. fastcgi, all-in-one-installer for fenchurch 9.03.16-9, git 1.6.1.2