$ git clone -n https://src.fedoraproject.org/rpms/xprop.git /var/lib/mock/f45-build-39067-731/root/chroot_tmpdir/scmroot/xprop
Cloning into '/var/lib/mock/f45-build-39067-731/root/chroot_tmpdir/scmroot/xprop'...
$ git fetch origin 5b44b378c09b0f6f381352098c9a94ec818fbe4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xprop
 * [new ref]         5b44b378c09b0f6f381352098c9a94ec818fbe4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b44b37 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild