$ git clone -n https://src.fedoraproject.org/rpms/pim-sieve-editor.git /var/lib/mock/f39-build-1545905-36699/root/chroot_tmpdir/scmroot/pim-sieve-editor
Cloning into '/var/lib/mock/f39-build-1545905-36699/root/chroot_tmpdir/scmroot/pim-sieve-editor'...
$ git fetch origin 7f90a7e6eec134138631322ee256cd923edf95c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pim-sieve-editor
 * [new ref]         7f90a7e6eec134138631322ee256cd923edf95c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f90a7e 23.08.2