Fix invalid relations from copying invalid feed item to collection

Prior to fdfa8052d1, it was possible to create an item in a feed
library using Add Item by Identifier. If you did that, and then copied
it to a collection in your personal library, it would somehow end up
with an owl:sameAs relation to a `/users/local` URI (probably because
the URI functions don't work properly on a feed library).

This will clean up such relations in a schema update.

chrome/content/zotero/xpcom/schema.js

@@ -41,7 +41,7 @@ Zotero.Schema = new function(){
 	
 	// If updating from this userdata version or later, don't show "Upgrading database…" and don't make
 	// DB backup first. This should be set to false when breaking compatibility or making major changes.
-	const minorUpdateFrom = false;
+	const minorUpdateFrom = 107;
 	
 	var _dbVersions = [];
 	var _schemaVersions = [];
@@ -3015,6 +3015,10 @@ Zotero.Schema = new function(){
 				}
 			}
 			
+			else if (i == 108) {
+				yield Zotero.DB.queryAsync(`DELETE FROM itemRelations WHERE predicateID=(SELECT predicateID FROM relationPredicates WHERE predicate='owl:sameAs') AND object LIKE ?`, 'http://zotero.org/users/local/%');
+			}
+			
 			// If breaking compatibility or doing anything dangerous, clear minorUpdateFrom
 		}
 		

resource/schema/userdata.sql

@@ -1,4 +1,4 @@
--- 107
+-- 108
 
 -- Copyright (c) 2009 Center for History and New Media
 --                    George Mason University, Fairfax, Virginia, USA