11664 fix principal user sql (#11665)

* 11664 - Fix principal user SQL to only include users that still exist
* 11664 - Add entry to readme

arches/app/models/migrations/10999_update_principaluser.py

@@ -18,7 +18,7 @@ class Migration(migrations.Migration):
             reverse_sql="select 1;",
         ),
         migrations.RunSQL(
-            sql="update resource_instances a set principaluser_id = b.userid::integer from (select userid, resourceinstanceid from edit_log where edittype = 'create' and userid != '' and userid is not null)b where a.resourceinstanceid::text = b.resourceinstanceid",
+            sql="update resource_instances a set principaluser_id = b.userid::integer from (select userid, resourceinstanceid from edit_log where edittype = 'create' and userid != '' and userid is not null)b where a.resourceinstanceid::text = b.resourceinstanceid and b.userid::integer in (select id from auth_user)",
             reverse_sql="select 1;",
         ),
         # Moved from 10799_geojsongeometry_featureid in 7.6.2

releases/7.6.4.md

@@ -3,6 +3,7 @@
 ### Bug Fixes and Enhancements
 
 -   Remove unnecessary creation of guardian permissions for principal user #[11564](https://github.com/archesproject/arches/issues/11564)
+- Fix migration that sets the initial principal users if a user no longer exists #[11664](https://github.com/archesproject/arches/issues/11664)
 -   Fix Graph Designer failure when editing large graphs #[11615](https://github.com/archesproject/arches/issues/11615)
 -   Fix failure to download exported search results when using non file-system based storages #[11620](https://github.com/archesproject/arches/issues/11620)
 - Cache resource relationship preflabels to improve report load time #[11583](https://github.com/archesproject/arches/issues/11583)