$ git clone -n https://src.fedoraproject.org/rpms/xprop.git /var/lib/mock/f40-build-787516-134782/root/chroot_tmpdir/scmroot/xprop
Cloning into '/var/lib/mock/f40-build-787516-134782/root/chroot_tmpdir/scmroot/xprop'...
$ git fetch origin caa552f1360433759191840bacb3d45586168fe7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xprop
 * [new ref]         caa552f1360433759191840bacb3d45586168fe7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at caa552f xprop 1.2.7