$ git clone -n https://src.fedoraproject.org/rpms/prometheus-jmx-exporter.git /var/lib/mock/f40-build-2491283-61662/root/chroot_tmpdir/scmroot/prometheus-jmx-exporter
Cloning into '/var/lib/mock/f40-build-2491283-61662/root/chroot_tmpdir/scmroot/prometheus-jmx-exporter'...
$ git fetch origin dbed29e55399aa59f5b2435cd93b2961e7bc87bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/prometheus-jmx-exporter
 * [new ref]         dbed29e55399aa59f5b2435cd93b2961e7bc87bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dbed29e Rebuilt for java-21-openjdk as system jdk