$ git clone -n https://src.fedoraproject.org/rpms/virt-who.git /var/lib/mock/f39-build-1592368-38311/root/chroot_tmpdir/scmroot/virt-who
Cloning into '/var/lib/mock/f39-build-1592368-38311/root/chroot_tmpdir/scmroot/virt-who'...
$ git fetch origin 17aea8f335c3048d2dc201a65713fbedce7fdf00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/virt-who
 * [new ref]         17aea8f335c3048d2dc201a65713fbedce7fdf00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17aea8f Import virt-who 1.31.26