$ git clone -n https://src.fedoraproject.org/rpms/ngircd.git /var/lib/mock/f40-build-1135520-20569/root/chroot_tmpdir/scmroot/ngircd
Cloning into '/var/lib/mock/f40-build-1135520-20569/root/chroot_tmpdir/scmroot/ngircd'...
$ git fetch origin 9a87028352957b231fd9564158dd381240e1e0b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ngircd
 * [new ref]         9a87028352957b231fd9564158dd381240e1e0b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a87028 Update to 27. Fixes rhbz#2274888