$ git clone -n https://src.fedoraproject.org/rpms/waylandpp.git /var/lib/mock/f45-build-38324-723/root/chroot_tmpdir/scmroot/waylandpp
Cloning into '/var/lib/mock/f45-build-38324-723/root/chroot_tmpdir/scmroot/waylandpp'...
$ git fetch origin 13a1c994e997cdbeea7b334384023b59d92bdba3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/waylandpp
 * [new ref]         13a1c994e997cdbeea7b334384023b59d92bdba3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13a1c99 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild