$ git clone -n https://src.fedoraproject.org/rpms/jflex.git /var/lib/mock/f41-build-797182-13657/root/chroot_tmpdir/scmroot/jflex
Cloning into '/var/lib/mock/f41-build-797182-13657/root/chroot_tmpdir/scmroot/jflex'...
$ git fetch origin 08bca7ab80516f93a9cad9e7b78c7433cc91ecf1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jflex
 * [new ref]         08bca7ab80516f93a9cad9e7b78c7433cc91ecf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 08bca7a Rebuilt for java-21-openjdk as system jdk