Fix: Prevent creation of highlights when a point annotation is pending

src/doc/DocAnnotator.js

@@ -843,6 +843,12 @@ class DocAnnotator extends Annotator {
 
         this.isCreatingHighlight = false;
 
+        // Prevent the creation of highlights if the user is currently creating a point annotation
+        const pointController = this.modeControllers[TYPES.point];
+        if (pointController && pointController.hadPendingThreads) {
+            return;
+        }
+
         // Creating highlights is disabled on mobile for now since the
         // event we would listen to, selectionchange, fires continuously and
         // is unreliable. If the mouse moved or we double clicked text,

src/doc/__tests__/DocAnnotator-test.js

@@ -1042,6 +1042,16 @@ describe('doc/DocAnnotator', () => {
             stubs.click = sandbox.stub(annotator, 'highlightClickHandler');
         });
 
+        it('should not trigger a highlight or creation if a point annotation is pending', () => {
+            annotator.modeControllers = {
+                'point': { hadPendingThreads: true }
+            };
+            annotator.highlightMouseupHandler({});
+            expect(stubs.create).to.not.be.called;
+            expect(stubs.click).to.not.be.called;
+            expect(annotator.isCreatingHighlight).to.be.false;
+        })
+
         it('should call highlightCreateHandler if not on mobile, and the user double clicked', () => {
             annotator.highlightMouseupHandler({ type: 'dblclick' });
             expect(stubs.create).to.be.called;