Fixed resolving name for already incremented node names

[danrot]

This PR fixes the resolving of node names. When the NameResolver::resolveName got passed a $forNode which was already suffixed with an increment (e.g. foo-1) it didn't recognize it as the same node. That means that saving a page with an already incremented node name always switched between two increments (foo-1 gets foo-2 when being saved, and turns back to foo-1 when saved another time).

This issue made some problems in combination with the publishing, because it moves a node in the session. Since this is neither necessary nor the desired behavior, changing this seems like a valid fix.

[wachterjohannes]

@danrot i have included this into the hotfix PR https://github.com/sulu/sulu-document-manager/pull/83/files#diff-8ddc58cf5731ab79d00888d92c84a8d7R32