$ git clone -n https://src.fedoraproject.org/rpms/proxmark3.git /var/lib/mock/f39-build-2363603-60372/root/chroot_tmpdir/scmroot/proxmark3
Cloning into '/var/lib/mock/f39-build-2363603-60372/root/chroot_tmpdir/scmroot/proxmark3'...
$ git fetch origin ef9cbfa02a5f36791058ce37450730bd25e78a4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/proxmark3
 * [new ref]         ef9cbfa02a5f36791058ce37450730bd25e78a4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef9cbfa Bump to v4.17768