$ git clone -n https://src.fedoraproject.org/rpms/mod_auth_mellon.git /var/lib/mock/f39-build-1540537-36475/root/chroot_tmpdir/scmroot/mod_auth_mellon
Cloning into '/var/lib/mock/f39-build-1540537-36475/root/chroot_tmpdir/scmroot/mod_auth_mellon'...
$ git fetch origin 2c4ba2e95a9bb176abd30264792fea5055b3ac4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mod_auth_mellon
 * [new ref]         2c4ba2e95a9bb176abd30264792fea5055b3ac4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c4ba2e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild