$ git clone -n https://src.fedoraproject.org/rpms/libdnf.git /var/lib/mock/f41-build-813759-148788/root/chroot_tmpdir/scmroot/libdnf
Cloning into '/var/lib/mock/f41-build-813759-148788/root/chroot_tmpdir/scmroot/libdnf'...
$ git fetch origin 32a6e1d848dbf4110510458f2b2b85146daed6a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdnf
 * [new ref]         32a6e1d848dbf4110510458f2b2b85146daed6a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32a6e1d Update to 0.73.2