main's convert_treeless_checkout_first (1c97b57a93) runs in update_completion._prepare before
the completion children, and its git probe went through the Popen this test replaces to capture
the children's argv, so it was counted as a third spawn.
main's convert_treeless_checkout_first (1c97b57a93) runs in update_completion._prepare before
the completion children, and its git probe went through the Popen this test replaces to capture
the children's argv, so it was counted as a third spawn.