BUG: Vertex group name matching unclear (lower / uppercase)

[NickDuijndam]

This bug report is:

• not a duplicate

Describe the bug
I've found a small issue when trying to make a mask based on a vertex group. Entering a vertex group name with a capital letter will never match. After looking into the code I found out that the vertex groups on the object are first lower cased before looking for a match, but this is not done for the 'Name contains' field. So if the user enters a capital here it will never find any matching vertex groups.

To Reproduce
Steps to reproduce the behavior:

1. Create a mask with vertex groups as data
2. Enter a vertex group with an uppercase letter the 'Name contains' field.
3. Click preview, go into edit mode and select the contents of bm_material_backup_COLOR1.0.
4. Observe that the vertex group is empty.

Expected behavior
I expect it to be case sensitive, or i expect it to be fully case insensitive (also lower the vertex group name the user enters.)

Desktop (please complete the following information):

• Windows 11
• Blender Version 4.2
• BakeMaster Version 2.6.3