Fix UUID comparison in ImageTable to be case-insensitive.

If the user's image entity returns UUID with lowercase string this comparison will fail even if the UUID matches (since FIC UUID tends to be uppercase) leading to the entry keep getting deleted and no image being returned to the user or cached..

Author: chakrit

FastImageCache/FICImageTable.m

@@ -347,8 +347,8 @@ - (UIImage *)newImageForEntityUUID:(NSString *)entityUUID sourceImageUUID:(NSStr
         if (entryData != nil) {
             NSString *entryEntityUUID = FICStringWithUUIDBytes([entryData entityUUIDBytes]);
             NSString *entrySourceImageUUID = FICStringWithUUIDBytes([entryData sourceImageUUIDBytes]);
-            BOOL entityUUIDIsCorrect = entityUUID == nil || [entityUUID isEqualToString:entryEntityUUID];
-            BOOL sourceImageUUIDIsCorrect = sourceImageUUID == nil || [sourceImageUUID isEqualToString:entrySourceImageUUID];
+            BOOL entityUUIDIsCorrect = entityUUID == nil || [entityUUID caseInsensitiveCompare:entryEntityUUID] == NSOrderedSame;
+            BOOL sourceImageUUIDIsCorrect = sourceImageUUID == nil || [sourceImageUUID caseInsensitiveCompare:entrySourceImageUUID] == NSOrderedSame;
 
             NSNumber *indexNumber = [self _numberForEntryAtIndex:[entryData index]];
             @synchronized(indexNumber) {