$ git clone -n https://src.fedoraproject.org/rpms/weldr-client.git /var/lib/mock/f40-build-737537-107159/root/chroot_tmpdir/scmroot/weldr-client
Cloning into '/var/lib/mock/f40-build-737537-107159/root/chroot_tmpdir/scmroot/weldr-client'...
$ git fetch origin ecb3e49acafae58939f3e26d46a07f61db9d6f0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/weldr-client
 * [new ref]         ecb3e49acafae58939f3e26d46a07f61db9d6f0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecb3e49 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild