Equivalent to work in svn
To group related changes you must use a changelist
From what I've read about assignments, they're kind of like bug tracking links.
In order to link the error link on commit, you will need to inject something on top of SVN (since SVN does not have an integrated bugtracker), but you also need to say which bugtracker you would like to integrate with - which means the technique will be different. In all cases, the bugtracker association is done in the post-commit hook.
For example, I use Mantis as my bugtracker, when I commit a change, if I have entered some magic words in the log message (eg "Bug # 1234 fixed" or "Mantis fixed # 1234") then the post-commit hook will send this message and the extracted error number to the Mantis url using curl and will automatically fix the error (and also add the log message text to bugnote).
For bugtracker, you can replace any other API system.
a source to share