[stgit] Documentation build error in proposed branch

As of recently, I cannot compile documentation in git://repo.or.cz/stgit.git proposed:

lux:~/devel/stgit$ git ls-files -o | xargs rm
lux:~/devel/stgit$ git rev-parse HEAD
c7506039d0299c093140857b7a617ec6bcdbfc13
lux:~/devel/stgit$ make all doc
   :
cd Documentation && make all
make[1]: Entering directory `/home/gustav/devel/stgit/Documentation'
rm -f doc.dep+ doc.dep
perl ./build-docdep.perl >doc.dep+
mv doc.dep+ doc.dep
make[1]: Leaving directory `/home/gustav/devel/stgit/Documentation'
make[1]: Entering directory `/home/gustav/devel/stgit/Documentation'
../stg-build --cmd-list > command-list.txt
Traceback (most recent call last):
  File "../stg-build", line 41, in <module>
    main()
  File "../stg-build", line 31, in main
    commands.get_commands(allow_cached = False), sys.stdout)
  File "/home/gustav/devel/stgit/stgit/commands/__init__.py", line 89,
in asciidoc_command_list
    for kind, cmds in _command_list(commands):
  File "/home/gustav/devel/stgit/stgit/commands/__init__.py", line 72,
in _command_list
    yield kind, sorted(kinds[kind].iteritems())
KeyError: 'Alias commands'
make[1]: *** [command-list.txt] Error 1
make[1]: Leaving directory `/home/gustav/devel/stgit/Documentation'
make: *** [doc] Error 2

- Gustav