ID 350670 - Archive created in Mari 3.1x crashes on open in Mari 4

Problem summary
Archive created in Mari 3.1x crashes on open in Mari 4

Customer reported version
4.0
Customer reported platform
centos7

Steps to reproduce

1) Launch Mari

2) Open the attached file that was created in 3.1

3) Mari will crash on project open


Workaround
Incrementally upgrading the project through 3.2v1 and 3.3v1 beforehand, solves the crashing.

Reproduced by support
Mari 4.0v4 - Win 7, CentOS 7
Mari 4.0v3
Mari 4.0v2
Mari 4.0v1 - Win 7, CentOS 7

Earliest version tested
Mari 3.3v1 - No crash

Expected behaviour
Project upgrades should be forwards compatible and not require staggered upgrading per version.

Actual behaviour
The project crashes on open in Mari 4