All svn commands, e.g. 'svn update', from dolphin fail if the repositories local path contains spaces. A quick check on the command executed by dolphin shows

  svn update /path/with spaces/to repository

instead of something like

  svn update '/path/with spaces/to repository'

so I assume that something is wrong with the escaping of the path argument?

If I rename the directory names so that they do not contain spaces, everything works fine.

Reproducible: Always

Steps to Reproduce:
1. checkout some svn repository to a path with spaces
2. svn update from dolphin


Actual Results:  
svn command fails

Expected Results:  
the command does not fail