$ git clone -n https://src.fedoraproject.org/rpms/rust-khronos_api.git /var/lib/mock/f45-build-42787-796/root/chroot_tmpdir/scmroot/rust-khronos_api
Cloning into '/var/lib/mock/f45-build-42787-796/root/chroot_tmpdir/scmroot/rust-khronos_api'...
$ git fetch origin cf2e28edd7479adfe82c8c06dd62bcc1b7c58c02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-khronos_api
 * [new ref]         cf2e28edd7479adfe82c8c06dd62bcc1b7c58c02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf2e28e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild