$ git clone -n https://src.fedoraproject.org/rpms/kmail.git /var/lib/mock/f41-build-738767-13297/root/chroot_tmpdir/scmroot/kmail
Cloning into '/var/lib/mock/f41-build-738767-13297/root/chroot_tmpdir/scmroot/kmail'...
$ git fetch origin ec29899335afafe9dcd663f7362f3a8ec9174c4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmail
 * [new ref]         ec29899335afafe9dcd663f7362f3a8ec9174c4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec29899 24.05.0