bug#20687: 25.0.50; `perform-replace' should invoke a key that you have bound in `query-replace-map'

[Drew Adams]

> These bindings look like real commands intended to be called
> interactively, so after enabling this feature in query-replace
> they will start doing their job which is good.
> 
> The only suggestion I have is to check whether the binding
> is a command before trying to call it, i.e.:

Good idea.  Thx.