Util: Fix loading UPS patches that affect the last byte of the file

CHANGES

@@ -9,6 +9,7 @@ Other fixes:
  - Core: Fix memory leak in opening games from the library
  - Qt: Fix infrequent deadlock when using sync to video
  - Qt: Fix applying savetype-only overrides
+ - Util: Fix loading UPS patches that affect the last byte of the file
 Misc:
  - Qt: Rearrange menus some
 

src/util/patch-ups.c

@@ -87,15 +87,16 @@ bool _UPSApplyPatch(struct Patch* patch, const void* in, size_t inSize, void* ou
 			if (patch->vf->read(patch->vf, &byte, 1) != 1) {
 				return false;
 			}
+			if (!byte) {
+				break;
+			}
 			if (offset >= outSize) {
 				return false;
 			}
 			buf[offset] ^= byte;
 			++offset;
-			if (!byte) {
-				break;
-			}
 		}
+		++offset;
 		alreadyRead = patch->vf->seek(patch->vf, 0, SEEK_CUR);
 	}