Two part fix: prevented the copying of wearable parameters to the avatar to trigger a rebake.
Then: Called wearableUpdated every time a wearable was added/removed/replaced and ensured it properly invalidated the composite
Confirmed working fix on developer machine.
Code reviewed by Seraph.
svn merge -r 136489:136510 svn+ssh://svn.lindenlab.com/svn/linden/branches/avatar-pipeline/multiple-textures-12 .
Progress can be tracked in DEV-32551.
-Nyx