ID 591072 - "Persistent Mapping allowed" enabled can significantly slow baking times.

Problem summary
"Persistent Mapping allowed" can significantly slow baking times.
 
Customer reported version
Mari.6.0v3
 
Customer reported platform
centOS 7
 
Steps to reproduce
 
1) Launch Mari.

2) Go to Edit > Preferences > GPU > General > Persistent Mapping Allowed and make sure Persistent Mapping Allowed is on.

3) Go to Help > Create Example Material Design Project
 
4) Open the Material Design project.
 
5) Select the last Merge node (named Sand (Merge) ) before the Principled BRDF, and hit [ Tab ] and create a Multi-Channel Bake Point node. It will automatically join the node flow if you've selected the Merge node beforehand.
 
6) Double click on the Multi-Channel Bake Point node, get a timer out and select Bake Active.
 
Expected behaviour
The time to bake should be reduced from the normal (i.e. without Persistent Mapping Allowed turned on). Normal baking time is around 30 seconds.
 
Actual behaviour
The time to bake can be significantly increased.
 
Workaround
Unknown.
 
Reproduced by support
 
This bug has been reproduced in:
Mari 7.0v2 - Windows 10 - Windows 11 - Rocky 9. Mari 7.0v2 was tested on a number of different systems: