Fix search error on nonexistent collection in recursive mode

And don't return results for a nonexistent parent search

chrome/content/zotero/xpcom/data/search.js

@@ -1171,6 +1171,7 @@ Zotero.Search.prototype._buildQuery = Zotero.Promise.coroutine(function* () {
 						let objKey = condition.value;
 						let objectType = condition.name == 'collection' ? 'collection' : 'search';
 						let objectTypeClass = Zotero.DataObjectUtilities.getObjectsClassForObjectType(objectType);
+						let forceNoResults = false;
 						
 						// libraryID assigned on search
 						if (this.libraryID !== null) {
@@ -1202,24 +1203,24 @@ Zotero.Search.prototype._buildQuery = Zotero.Promise.coroutine(function* () {
 								objLibraryID, objKey
 							);
 						}
-						if (!obj) {
+						if (obj) {
-							var msg = objectType.charAt(0).toUpperCase() + objectType.substr(1)
+							if (objectType == 'search' && obj == this) {
+								Zotero.warn(`Search "${this.name}" references itself -- skipping condition`);
+								continue;
+							}
+						}
+						else {
+							let msg = objectType.charAt(0).toUpperCase() + objectType.substr(1)
 								+ " " + objKey + " specified in search not found";
 							Zotero.debug(msg, 2);
 							Zotero.log(msg, 'warning', 'chrome://zotero/content/xpcom/search.js');
-							if (objectType == 'search') {
+							forceNoResults = true;
-								continue;
-							}
-							obj = {
-								id: 0
-							};
-						}
-						if (objectType == 'search' && obj == this) {
-							Zotero.warn(`Search "${this.name}" references itself -- skipping condition`);
-							continue;
 						}
 						
-						if (objectType == 'collection') {
+						if (forceNoResults) {
+							condSQL += '0=1';
+						}
+						else if (objectType == 'collection') {
 							let ids = [obj.id];
 							
 							// Search descendent collections if recursive search

test/tests/searchTest.js

@@ -193,6 +193,18 @@ describe("Zotero.Search", function() {
 					var matches = yield s.search();
 					assert.sameMembers(matches, [item.id]);
 				});
+				
+				it("should return no results for a collection that doesn't exist in recursive mode", async function () {
+					var item = await createDataObject('item');
+					
+					var s = new Zotero.Search();
+					s.libraryID = item.libraryID;
+					s.name = "Test";
+					s.addCondition('collection', 'is', Zotero.DataObjectUtilities.generateKey());
+					s.addCondition('recursive', 'true');
+					var matches = await s.search();
+					assert.lengthOf(matches, 0);
+				});
 			});
 			
 			describe("fileTypeID", function () {
@@ -361,6 +373,17 @@ describe("Zotero.Search", function() {
 					var matches = yield s.search();
 					assert.notInclude(matches, item.id);
 				});
+				
+				it("should return no results for a search that doesn't exist", async function () {
+					var item = await createDataObject('item');
+					
+					var s = new Zotero.Search();
+					s.libraryID = item.libraryID;
+					s.name = "Test";
+					s.addCondition('savedSearch', 'is', Zotero.DataObjectUtilities.generateKey());
+					var matches = await s.search();
+					assert.lengthOf(matches, 0);
+				});
 			});
 			
 			describe("unfiled", function () {