$ git clone -n https://src.fedoraproject.org/rpms/rust-phf_shared.git /var/lib/mock/f45-build-43834-807/root/chroot_tmpdir/scmroot/rust-phf_shared
Cloning into '/var/lib/mock/f45-build-43834-807/root/chroot_tmpdir/scmroot/rust-phf_shared'...
$ git fetch origin b60ced3f0ed44cbecfd705a7fffe04fa48bed2f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-phf_shared
 * [new ref]         b60ced3f0ed44cbecfd705a7fffe04fa48bed2f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b60ced3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild