Steps to reproduce:
- Edit a quantity value.
- Type 2000+-1. The save button gets enabled.
- Remove the 1. Save gets disabled.
- Remove -. Still disabled. This is all expected.
- Now remove the +. Still disabled.
This was reported somewhere on wikidata.org, but I can not find it any more.
- https://gerrit.wikimedia.org/r/331607
- Tag a ValueView release (this will be done with the release we need to do for T159876 anyway, also see https://gerrit.wikimedia.org/r/#/q/status:open+project:data-values/value-view)
- Update Wikibase.git to use it
- https://gerrit.wikimedia.org/r/334671 adds a browser test for the fixed bug