- Packed .c3l files without compressions weren't unpacked correctly.

releasenotes.md

@@ -130,6 +130,7 @@
 - Bitstruct accidentally allowed other arrays than char arrays #2836
 - Bitstruct as substruct fails to properly work with designated initializers. #2827
 - Bug when initializing an inferred array with deep structure using designated init #2826
+- Packed .c3l files without compressions weren't unpacked correctly.
 
 ### Stdlib changes
 - Add `ThreadPool` join function to wait for all threads to finish in the pool without destroying the threads.

src/utils/unzipper.c

@@ -277,6 +277,7 @@ const char *zip_file_write(FILE *zip, ZipFile *file, const char *dir, bool overw
 			}
 			left_to_read -= written;
 		}
+		fclose(f);
 		return NULL;
 	}