Autosave overwrites the wrong project hip files

[ustk]

[THREAD]
https://forum.hise.audio/topic/13160/autosave-overwrites-the-wrong-project

• Open a project and let the autosave doing its job.
• Without closing Hise, switch to another project (I did it from the file menu) and let the autosave doing its job again...
  -> The newly autosaved files are written on the previous project's .hip files.
  It appears the directory for the autosave is not always updated

[weavermedia]

Fixed here: #796