$ git clone -n https://src.fedoraproject.org/rpms/gbrainy.git /var/lib/mock/f38-build-side-42-init-devel-1382157-30706/root/chroot_tmpdir/scmroot/gbrainy
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1382157-30706/root/chroot_tmpdir/scmroot/gbrainy'...
$ git fetch origin 5b5d5ec3bb71276912a4a5869a3bd1aa087dfa31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gbrainy
 * [new ref]         5b5d5ec3bb71276912a4a5869a3bd1aa087dfa31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b5d5ec Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild