$ git clone -n https://src.fedoraproject.org/rpms/freemarker.git /var/lib/mock/f40-build-2693020-68287/root/chroot_tmpdir/scmroot/freemarker
Cloning into '/var/lib/mock/f40-build-2693020-68287/root/chroot_tmpdir/scmroot/freemarker'...
$ git fetch origin 46be47ddc597c00a10e1337c7bf3c8c31a132467:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freemarker
 * [new ref]         46be47ddc597c00a10e1337c7bf3c8c31a132467 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46be47d Rebuilt for java-21-openjdk as system jdk