$ git clone -n https://src.fedoraproject.org/rpms/golang-github-lestrrat-blackmagic.git /var/lib/mock/f40-build-2583574-62402/root/chroot_tmpdir/scmroot/golang-github-lestrrat-blackmagic
Cloning into '/var/lib/mock/f40-build-2583574-62402/root/chroot_tmpdir/scmroot/golang-github-lestrrat-blackmagic'...
$ git fetch origin 8c7d3469822a3b639fa3065b266273de28eada53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-lestrrat-blackmagic
 * [new ref]         8c7d3469822a3b639fa3065b266273de28eada53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c7d346 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild