$ git clone -n https://src.fedoraproject.org/rpms/rust-ansitok.git /var/lib/mock/f45-build-40060-767/root/chroot_tmpdir/scmroot/rust-ansitok
Cloning into '/var/lib/mock/f45-build-40060-767/root/chroot_tmpdir/scmroot/rust-ansitok'...
$ git fetch origin 556d94d864d800f9fce811a08f8456dcf3ad1f63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ansitok
 * [new ref]         556d94d864d800f9fce811a08f8456dcf3ad1f63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 556d94d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild