What steps will reproduce the problem?
0. Publish an avatar via mod_vcard
1. Switch from mod_vcard to mod_vcard_legacy
2. Log in and broadcast presence
3. Inspect presence stanzas
What is the expected output?
mod_vcard_legacy should attach hash of avatar per xep-153
What do you see instead?
mod_vcard_legacy does not do this because there is no avatar published to PEP
This leads to clients assuming there is no avatar published.
This resolves itself once a new avatar is published to PEP, directly or via mod_vcard_legacy
What version of the product are you using? On what operating system?