$ git clone -n https://src.fedoraproject.org/rpms/wf-shell.git /var/lib/mock/f40-build-797469-141351/root/chroot_tmpdir/scmroot/wf-shell
Cloning into '/var/lib/mock/f40-build-797469-141351/root/chroot_tmpdir/scmroot/wf-shell'...
$ git fetch origin 2019c4b35e9a1cb8b0e3537a0445f97658a69aef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wf-shell
 * [new ref]         2019c4b35e9a1cb8b0e3537a0445f97658a69aef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2019c4b packit: Update config