$ git clone -n https://src.fedoraproject.org/rpms/dyninst.git /var/lib/mock/f40-build-2668136-67186/root/chroot_tmpdir/scmroot/dyninst
Cloning into '/var/lib/mock/f40-build-2668136-67186/root/chroot_tmpdir/scmroot/dyninst'...
$ git fetch origin 4415a5d27029e7039569e098c2a4f935ba87e01d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dyninst
 * [new ref]         4415a5d27029e7039569e098c2a4f935ba87e01d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4415a5d Merge #6 `Fix CI gating plan`