$ git clone -n https://src.fedoraproject.org/rpms/python-sciunit.git /var/lib/mock/f39-build-1958288-43265/root/chroot_tmpdir/scmroot/python-sciunit
Cloning into '/var/lib/mock/f39-build-1958288-43265/root/chroot_tmpdir/scmroot/python-sciunit'...
$ git fetch origin 5c4c88f989c65b8fd5a122f6f79fe6912ee5c399:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sciunit
 * [new ref]         5c4c88f989c65b8fd5a122f6f79fe6912ee5c399 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c4c88f Get rid of da (l)imp