[erlang-questions] Ctrl+R bug in erl?

[Roger Lipscombe]

Steps to reproduce (in OTP-21.0):

1. Run 'erl'.
2. Evaluate an expression, so there's something in the history.
3. Press Ctrl+R to bring up reverse search.
4. At the (search) prompt, press Backspace.
5. Weirdness ensues.

Erlang/OTP 21 [erts-10.0] [source] [64-bit] [smp:12:12] [ds:12:12:10]
[async-threads:1] [hipe]

Eshell V10.0  (abort with ^G)
1> 42 + 42.
84
(search)`': 42 + 42.42 + 42.42 + 42.42 + 42.42 + 42.