Merge branch 'fix/doublecrashonprojectsave' into refactors

Author: Philiquaz

src/StudioCore/MapStudioNew.cs

@@ -630,7 +630,7 @@ private bool StealGameDllIfMissing(ProjectSettings settings, string dllName)
 
     public void SaveAll()
     {
-        if (_projectSettings != null && _projectSettings.ProjectName != null)
+        if (_projectSettings != null && _projectSettings.ProjectName != null && !string.IsNullOrWhiteSpace(CFG.Current.LastProjectFile))
         {
             // Danger zone assuming on lastProjectFile
             _projectSettings.Serialize(CFG.Current.LastProjectFile);
@@ -682,8 +682,10 @@ private void SaveFocusedEditor()
     {
         if (_projectSettings != null && _projectSettings.ProjectName != null)
         {
-            // Danger zone assuming on lastProjectFile
-            _projectSettings.Serialize(CFG.Current.LastProjectFile);
+            if (!string.IsNullOrWhiteSpace(CFG.Current.LastProjectFile))
+            {
+                _projectSettings.Serialize(CFG.Current.LastProjectFile);
+            }
             _focusedEditor.Save();
         }
     }

src/StudioCore/Project.cs

@@ -108,7 +108,7 @@ public Project CreateRecoveryProject()
         }
         catch (Exception e)
         {
-            return this;
+            return null;
         }
     }
 }