$ git clone -n https://src.fedoraproject.org/rpms/libpeas1.git /var/lib/mock/f39-build-1589280-38232/root/chroot_tmpdir/scmroot/libpeas1
Cloning into '/var/lib/mock/f39-build-1589280-38232/root/chroot_tmpdir/scmroot/libpeas1'...
$ git fetch origin 294b8a2c3adb05ac7bd2bfe60a08b1d2e66f79da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libpeas1
 * [new ref]         294b8a2c3adb05ac7bd2bfe60a08b1d2e66f79da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 294b8a2 Fix obsoletes and provides