Fix Reader failing to clear cached comments if all the comments are deleted (#25482)

Author: kean

RELEASE-NOTES.txt

@@ -7,6 +7,7 @@
 * [*] Reader: Fix an issue with "Notificaton Settings" showing incorrect state right after subscribing [#25459]
 * [*] Reader: Fix an issue with "Notificaton Settings" button shown when you are not subscribed [#25459]
 * [*] Reader: Fix a regression with anchors not working in posts [#25459]
+* [*] Reader: Fix an issues with Reader failing to clear cached comments if all the comments are deleted [#25482]
 * [*] Reader: Fix an issue with the article view removing autoplay without showing controls [#25468]
 * [*] Menus: Fix an issue with footer view in Menu Editing not resizing [#25481]
 

WordPress/Classes/Services/CommentService.m

@@ -1182,10 +1182,6 @@ - (BOOL)mergeHierarchicalComments:(NSArray *)comments forPage:(NSUInteger)page f
 {
     NSParameterAssert(post.managedObjectContext != nil);
 
-    if (![comments count]) {
-        return NO;
-    }
-
     NSMutableSet<NSNumber *> *visibleCommentIds = [NSMutableSet new];
     NSMutableArray *ancestors = [NSMutableArray array];
     NSMutableArray *commentsToKeep = [NSMutableArray array];