$ git clone -n https://src.fedoraproject.org/rpms/rust-miette-derive.git /var/lib/mock/f40-build-2657285-66916/root/chroot_tmpdir/scmroot/rust-miette-derive
Cloning into '/var/lib/mock/f40-build-2657285-66916/root/chroot_tmpdir/scmroot/rust-miette-derive'...
$ git fetch origin 356af9994b2a5a94cfd79efae9d97af83557d1b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-miette-derive
 * [new ref]         356af9994b2a5a94cfd79efae9d97af83557d1b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 356af99 Update to 7.2.0 (rhbz#2262595)