$ git clone -n https://src.fedoraproject.org/rpms/logserial.git /var/lib/mock/f41-build-1022241-18059/root/chroot_tmpdir/scmroot/logserial
Cloning into '/var/lib/mock/f41-build-1022241-18059/root/chroot_tmpdir/scmroot/logserial'...
$ git fetch origin fc0b36eb1e2f94f4e64f4836b273dd159878e23f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/logserial
 * [new ref]         fc0b36eb1e2f94f4e64f4836b273dd159878e23f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc0b36e Eliminate use of obsolete %patchN syntax (#2283636)