[Erc-help] tab completion going foobar at times

[Gergely N. <alg...@bo...>]

Greetings!

I was experiencing problems with tab completion: sometimes, I got
transferred to a different buffer, or some random location in the
current buffer. A few minutes ago, I figured out how I can reliably
reproduce this behaviour: on one channel, there were two nicks
starting with the same letter, so f<tab>, erc pops up a completion
window. Now, I switch to another frame, and on another channel, I do
o<tab>. And bingo! I get back to the previous frame, where the
completion window had disappeared.

By looking at erc-completion.el, I suspect the bug may be in
try-complete-erc-nick-restore or try-complete-erc-nick. Those two
fiddle with "*Completions*".

I'm quite confident it's try-complete-erc-nick. However, I don't have
a fix yet..