$ git clone -n https://src.fedoraproject.org/rpms/beust-jcommander.git /var/lib/mock/f39-build-1912932-42873/root/chroot_tmpdir/scmroot/beust-jcommander
Cloning into '/var/lib/mock/f39-build-1912932-42873/root/chroot_tmpdir/scmroot/beust-jcommander'...
$ git fetch origin 637652d7af4836f62628b8838c17e4017c98ea96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/beust-jcommander
 * [new ref]         637652d7af4836f62628b8838c17e4017c98ea96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 637652d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild