(hotfix) Checking for property to lock property input

(bug 56296)
Instead of checking for the value, the property id needs to be checked to lock
the property input element. This prevents the property input box from receiving
focus when adding a new claim to an already existing claim list.

Change-Id: I8260becda68d4f3027f01d154e1e52ab7e852f8b
Merge "(hotfix) Checking for property to lock property input"