$ git clone -n https://src.fedoraproject.org/rpms/module-build-service.git /var/lib/mock/f40-build-2613700-64088/root/chroot_tmpdir/scmroot/module-build-service
Cloning into '/var/lib/mock/f40-build-2613700-64088/root/chroot_tmpdir/scmroot/module-build-service'...
$ git fetch origin 5c42784d594e1d174c08d021fc3894d73e390adf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/module-build-service
 * [new ref]         5c42784d594e1d174c08d021fc3894d73e390adf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c42784 Adapt for Python 3.12