Does the keymap code backtrack on prefixes?

What I mean is, suppose you have a major mode (for the sake of concreteness, UGHTeX) which binds C-c C-f C-e, and a minor mode (fungi-menu), which binds C-c C-f R. Does C-c C-f C-e invoke UGHTeX's command? Or does the prefix defined by fungi-menu shadow the prefix defined by UGHTeX? Anybody know offhand? If XEmacs doesn't invoke UGHTeX's command in this situation, shouldn't it? -- Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.