Saving tag data re-encodes entities each time

If you have a tag such as "Fish & Chips", for instance as a user interest

Next time you save the user editing form (even when not amending the tags/interests fields), the tag becomes Fish & amp; Chips. Each subsequent edit of this form re-encodes the entities again - e.g. on third edit the tag has become Fish & amp;amp; Chips (excuse the spacing, it's just to get Jira to display actual content)

Tag management page:

User profile page:

Found after spotting these anomalies while working on tags report (MDL-75245)