Binding Containing Escape Key Fails to Escape History Search

[sunnycemetery]

Given the following binding...

> "æ": "\ef"

... should not pressing “æ” during a history search end the search--the  
same as pressing Escape followed by “f”?  This does not happen with  
5.0.3 (screencast attached).

Thank you.

Readline: Escaped Binding Not Escaping.gif
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