signature decrypt problem with new JS files

[badproject]

Cannot decrypt signature with new JS file.

JS File: https://s.ytimg.com/yts/jsbin/player-tr_TR-vflUmuZyU/base.js
Encrypted Signature: 91913929355512D9A25CA5AB9CE3D8EF1C327D3835.601474C479A9A543C6D97B055C5D96BA577B10EB0EB
Decrypted Signature: 9019F013759CB9CA9FA271928690E01392498D3C.0A7F155816EA8373CF76A16863B49A2D558D9968

_TESTS variable for /test/test_youtube_signature.py
_TESTS = [ ( 'https://s.ytimg.com/yts/jsbin/player-tr_TR-vflUmuZyU/base.js', 'js', '91913929355512D9A25CA5AB9CE3D8EF1C327D3835.601474C479A9A543C6D97B055C5D96BA577B10EB0EB', '9019F013759CB9CA9FA271928690E01392498D3C.0A7F155816EA8373CF76A16863B49A2D558D9968', ) ]

python youtube-dl/test/test_youtube_signature.py

E

ERROR: test_signature_js_vflUmuZyU (main.TestSignature)

Traceback (most recent call last):
File "youtube-dl/test/test_youtube_signature.py", line 63, in test_func
got_sig = func(src_sig)
File "youtube/youtube-dl/youtube_dl/extractor/youtube.py", line 984, in
return lambda s: initial_function([s])
File "youtube/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "youtube/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "youtube/youtube-dl/youtube_dl/jsinterp.py", line 174, in interpret_expression
return objmember
KeyError: u'Qv'

---

Ran 1 test in 0.497s

FAILED (errors=1)

[yan12125]

Thanks. That's a duplicate of #10921