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Maniphest T40623

Renaming vertex group brakes modifier links
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Description

System Information
Win7/64, AMD HD 6850

Blender Version
blender-2.71-29e8c46-win64

Short description of error
If there is a bevel modifier referring to a vertex group, the link to the vertex group is lost as soon as the vertex group is renamed.

Exact steps for others to reproduce the error

  1. Open
    RenameVertexGroup.blend58 KBDownload
  2. Rename the vertex group (named "old name")
  3. Switch to the modifiers: Still the old name is displayed. The link is lost. The modifier does not work correctly anymore.

Event Timeline

Willi (willi) created this task.Jun 14 2014, 9:17 PM
Willi (willi) raised the priority of this task from to 90.
Willi (willi) updated the task description. (Show Details)
Willi (willi) added a project: BF Blender.
Willi (willi) edited a custom field.
Willi (willi) added a subscriber: Willi (willi).
Bastien Montagne (mont29) changed the task status from Unknown Status to Archived.Jun 14 2014, 9:34 PM
Bastien Montagne (mont29) claimed this task.

This is not a bug, but a (very old) known limitation of current code - vgroups are not ID blocks, like e.g. objects, textures or materials, so we store them as mere names in modifiers, hence no real way to handle that kind of rename currently.