Screenshot of problem

This causing:

• The label fallback (parameter name + ucfirst) not working.
• It is still available from the "Add parameter" dropdown.
• The user can actually add it again, causing a logic error.

I can currently consistently reproduce this on https://en.wikipedia.org/wiki/Taal%2C_Batangas?veaction=edit when editing the "Population Consensus of Taal" information box.

See screenshot:

• "title" is both in the sidebar and in the selectable cloud
• "title" isn't transformed into "Title" (the templatedata has no .label for this one)

Version: unspecified
Severity: normal

Attached: