$ git clone -n https://src.fedoraproject.org/rpms/x509watch.git /var/lib/mock/f39-build-1578033-37987/root/chroot_tmpdir/scmroot/x509watch
Cloning into '/var/lib/mock/f39-build-1578033-37987/root/chroot_tmpdir/scmroot/x509watch'...
$ git fetch origin 2c9fbfe9019b024e9f964eaafc1e2562af3c34ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/x509watch
 * [new ref]         2c9fbfe9019b024e9f964eaafc1e2562af3c34ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c9fbfe Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild