Bug Fixes:
- Fixed an issue where IDs would be duplicated in the graph/accelerator when a save as function is performed.
- Fixed the error message displayed when a file with invalid characters was saved.
- Fixed a bug which would prevent export into BPMN/CMMN when the file name had a special character.
- Fixed an issue where the user was not properly notified when their file has been modified by someone else when they are about to save.
