downloader: Fix a bug where hashes are miscalculated

due to not including the map data in the hash calculation.

This is only relevant for streams with map data, which does not include twitch or youtube URLs.

downloader/downloader/main.py

@@ -584,6 +584,7 @@ class SegmentGetter(object):
 					file_created = True
 					if map_data is not None:
 						common.writeall(f.write, map_data)
+						hash.update(map_data)
 					# We read chunk-wise in 8KiB chunks. Note that if the connection cuts halfway,
 					# we may lose part of the last chunk even though we did receive it.
 					# This is a small enough amount of data that we don't really care.