$ git clone -n https://src.fedoraproject.org/rpms/rust-indoc1.git /var/lib/mock/f45-build-42607-795/root/chroot_tmpdir/scmroot/rust-indoc1
Cloning into '/var/lib/mock/f45-build-42607-795/root/chroot_tmpdir/scmroot/rust-indoc1'...
$ git fetch origin 87884ad868b31c00a56e425c2f00006ade8cc5cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-indoc1
 * [new ref]         87884ad868b31c00a56e425c2f00006ade8cc5cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87884ad Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild