$ git clone -n https://src.fedoraproject.org/rpms/python-irc.git /var/lib/mock/f40-build-2203598-51930/root/chroot_tmpdir/scmroot/python-irc
Cloning into '/var/lib/mock/f40-build-2203598-51930/root/chroot_tmpdir/scmroot/python-irc'...
$ git fetch origin 5b8373c56a6390d70b6ee7900fb4e2caf085c926:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-irc
 * [new ref]         5b8373c56a6390d70b6ee7900fb4e2caf085c926 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b8373c Update to version 20.3.1 (fedora#2255789)