$ git clone -n https://src.fedoraproject.org/rpms/wireshark.git /var/lib/mock/f45-build-38426-724/root/chroot_tmpdir/scmroot/wireshark
Cloning into '/var/lib/mock/f45-build-38426-724/root/chroot_tmpdir/scmroot/wireshark'...
$ git fetch origin ba7eca69c4dc302986f4b715c0258e6fffbc65ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wireshark
 * [new ref]         ba7eca69c4dc302986f4b715c0258e6fffbc65ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba7eca6 New version 4.6.8