ID 518203 - Grouping Channel nodes removes their Export Items and classes them as Bake Points in the Export Manager

Problem summary
Grouping Channel nodes removes their Export Items and classes them as Bake Points in the Export Manager
 
Customer reported version
Mari 5.0v4
 
Customer reported platform
 
Steps to reproduce
 
1) Open an Example Project

2) Open the Export Manager and add all the Channels as Export Items (if they are not added already)

3) Close the Export Manager
 
4) Select all of the Channel nodes and Group them (Ctrl+G)
 
5) Open the Export Manager, notice that the Export Items have been removed
 
6) Click Add New Export Item, notice that the Channels are now listed in the Bake Points column
 
Expected behaviour
Grouping Channel nodes should not remove their Export Items.
Channel nodes should be listed in the left-hand Channels: column of the Add New Export Item dialog.
 
Actual behaviour
Grouping Channel nodes removes their Export Items.
Channel nodes are listed in the right-hand Bake Points: column of the Add New Export Item dialog.
 
Workaround
Unknown.
 
Reproduced by support
This bug has been reproduced in:
Mari 5.0v4 - Windows 10 - CentOS 7.9
Mari 4.7v1 - Windows 10
Mari 4.6v1 - Windows 10
Mari 4.2v1 - Windows 10
Mari 4.0v1 - Windows 10
 
Earliest version tested
Mari 4.0v1 - This feature did not exist before this version