$ git clone -n https://src.fedoraproject.org/rpms/chisel.git /var/lib/mock/f41-build-side-1-2656048-28431/root/chroot_tmpdir/scmroot/chisel
Cloning into '/var/lib/mock/f41-build-side-1-2656048-28431/root/chroot_tmpdir/scmroot/chisel'...
$ git fetch origin 032b25f36e45b3a2af7705d68dff7e1717ed9ea7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chisel
 * [new ref]         032b25f36e45b3a2af7705d68dff7e1717ed9ea7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 032b25f Update to new upstream version (closes rhbz#2303131)