Phatality ID got removed more than three years ago in rPHAT96ea0062dd8c9d19cff1bed40b77d33fc9915a11 but not in Phabricator.
- Find Forms exposing that field: SELECT CONCAT("https://phabricator.wikimedia.org/maniphest/task/edit/form/",id), engineKey, builtinKey, name FROM phabricator_search.search_editengineconfiguration WHERE properties LIKE "%error.id%" AND properties NOT LIKE "%error.id\":\"hidden%";
- Hide that field from Form https://phabricator.wikimedia.org/maniphest/task/edit/form/46/ via https://phabricator.wikimedia.org/transactions/editengine/maniphest.task/view/46/
- Hide that field from Form https://phabricator.wikimedia.org/maniphest/task/edit/form/68/ via https://phabricator.wikimedia.org/transactions/editengine/maniphest.task/view/68/
- Hide that field from Form https://phabricator.wikimedia.org/maniphest/task/edit/form/95/ via https://phabricator.wikimedia.org/transactions/editengine/maniphest.task/view/95/
- N/A: Update "maniphest.custom-field-definitions" by setting "search": false for error.id in https://gitlab.wikimedia.org/repos/phabricator/deployment/-/blob/wmf/stable/scap/templates/phabricator/conf/local/local.json.j2 --- not applicable because field does not even exist due to T398460: Phab Scap template vs actual value out of sync for numerous values
- Hide that field from the Maniphest Advanced search by setting "search": false for error.id in https://phabricator.wikimedia.org/config/edit/maniphest.custom-field-definitions/
- Remove all its entries from fulltext search index (got added in T244330): DELETE FROM phabricator_maniphest.maniphest_task_ffield WHERE fieldKey = "!Qxw"; -- done on 20250807
- Maybe completely remove that field error.id from https://phabricator.wikimedia.org/config/edit/maniphest.custom-field-definitions/
or https://gitlab.wikimedia.org/repos/phabricator/deployment/-/blob/wmf/stable/scap/templates/phabricator/conf/local/local.json.j2but would that break anything in existing Form definitions due to being mentioned in the phabricator_search.search_editengineconfiguration.properties DB?
Edit 20250807: Let's not fix the last bullet point. I updated https://phabricator.wikimedia.org/config/edit/maniphest.custom-field-definitions/ to mention that error.id is deprecated.