Comment 2 for bug 619872

This bug is about error while locking when (built-in) commit command is executed. commit invoked via qsubprocess. Perhaps user has some sort of race condition when another bzr action (or maybe TortoiseBzr crawler? Bzr-Explorer refreshed?) trying to acquire/release the lock. It's my best guess.

File "bzrlib\commands.pyo", line 1055, in run_bzr
  File "bzrlib\commands.pyo", line 661, in run_argv_aliases
  File "bzrlib\commands.pyo", line 665, in run_direct
  File "bzrlib\cleanup.pyo", line 122, in run_simple
  File "bzrlib\cleanup.pyo", line 156, in _do_with_cleanups
  File "bzrlib\builtins.pyo", line 3138, in run
  File "bzrlib\decorators.pyo", line 192, in write_locked
  File "bzrlib\workingtree_4.pyo", line 618, in lock_write
  File "bzrlib\branch.pyo", line 2144, in lock_write
  File "bzrlib\lockable_files.pyo", line 193, in lock_write
  File "bzrlib\lockdir.pyo", line 600, in lock_write
  File "bzrlib\lockdir.pyo", line 531, in wait_lock
  File "bzrlib\lockdir.pyo", line 438, in peek
  File "bzrlib\lockdir.pyo", line 428, in _read_info_file
  File "bzrlib\lockdir.pyo", line 462, in _parse_info
  File "bzrlib\rio.pyo", line 264, in read_stanza
  File "_rio_pyx.pyx", line 144, in bzrlib._rio_pyx._read_stanza_utf8
  File "_rio_pyx.pyx", line 85, in bzrlib._rio_pyx._split_first_line_utf8
ValueError: tag/value separator not found in line ''