$ git clone -n https://src.fedoraproject.org/rpms/rust-schemars_derive.git /var/lib/mock/f45-build-44677-816/root/chroot_tmpdir/scmroot/rust-schemars_derive
Cloning into '/var/lib/mock/f45-build-44677-816/root/chroot_tmpdir/scmroot/rust-schemars_derive'...
$ git fetch origin 25ac176296296210d7437c1341c0fc046409ff59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-schemars_derive
 * [new ref]         25ac176296296210d7437c1341c0fc046409ff59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25ac176 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild