Nested PROTO translation/rotation propagation not functional in groups

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Describe the Bug

For a fairly simple nested PROTO, like a StraightRoadSegment inside a Group, changing the translation/field has no effect until some other field is changed. The loading of non-default values of translation works fine, is just the changes from GUI that are "temporarely" broken.

#VRML_SIM R2021b utf8
# template language: javascript

PROTO Test [
  field   SFVec3f              translation               0 0 0
  field   SFRotation           rotation                  0 0 1 0
  field   SFFloat              width                     7                      
]{
  Group {
    children [
      StraightRoadSegment {
        translation IS translation
        rotation IS rotation
        width IS width
      }
    ]
  }
}

To reproduce:

• load the world in bug_translation_propagation.zip
• change translation/rotation field, nothing happens.
• change width, the road widens
• change translation/rotation field, now it propagates.

EDIT: it appears to affect StraightRoadSegment but not Road