while if continue return sequence

[rocky]

Decompiling bytecode for:

def test(a):
    while True:
        if a:
            pass
        else:
            continue
        return

gives:

:Traceback (most recent call last):
  File "/src/external-vcs/github/uncompyle2/uncompyle2/__init__.py", line 203, in main
    uncompyle_file(infile, outstream, showasm, showast)
  File "/src/external-vcs/github/uncompyle2/uncompyle2/__init__.py", line 140, in uncompyle_file
    uncompyle(version, co, outstream, showasm, showast)
  File "/src/external-vcs/github/uncompyle2/uncompyle2/__init__.py", line 129, in uncompyle
    raise walk.ERROR
ParserError: --- This code section failed: ---

0	SETUP_LOOP        '26'
3	LOAD_GLOBAL       'True'
6	POP_JUMP_IF_FALSE '25'

9	LOAD_FAST         'a'
12	POP_JUMP_IF_FALSE '3'

15	JUMP_FORWARD      '21'

18	CONTINUE          '3'
21_0	COME_FROM         '15'

21	LOAD_CONST        None
24	RETURN_END_IF     None
25	POP_BLOCK         None
26_0	COME_FROM         '0'

Syntax error at or near `POP_BLOCK' token at offset 25

That RETURN_END_IF in fact is not the end of the if/else which ends after the continue instruction on line 18.