$ git clone -n https://src.fedoraproject.org/rpms/rust-mptcp-pm.git /var/lib/mock/f38-build-side-43-rust-devel-1397252-31052/root/chroot_tmpdir/scmroot/rust-mptcp-pm
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397252-31052/root/chroot_tmpdir/scmroot/rust-mptcp-pm'...
$ git fetch origin e577bc0dd341af965d53bb86c14fa7288c757f6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mptcp-pm
 * [new ref]         e577bc0dd341af965d53bb86c14fa7288c757f6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e577bc0 Upgrade to 0.1.3