Breaks on latest emacs master development build

[PythonNut]

All searches seem to search a single char, for some reason.

[PythonNut]

When Emacs 25 is released, I'll revisit this and probably fix this along with #1 and #5.

[ReneFroger]

I have reïnstalled the latest use-package, and I got an error. Might be related to this?

Error (use-package): flx-isearch/:catch: Wrong type argument: stringp, :init-value

with

(use-package flx-isearch
  :ensure t)

[Fourchaux]

Same error with a dev version of Emacs (27.0.50)

Error (bytecomp): Wrong type argument: stringp, :init-value

Also, 2 warnings:

Warning (bytecomp): Unused lexical variable ‘result’
Warning (bytecomp): ‘isearch-word’ is an obsolete variable (as of 25.1); use ‘isearch-regexp-function’ instead.