crux-move-beginning-of-line yields search failed "^[[:space:]]*" in minibuffer about crux HOT 3 CLOSED

Same issue here. Using prelude as well.
I was using crux-20160725.59 before and this issue happen after I update to crux-20170626.632.

from crux.

Not just in minibuffer, everything with a prompt (shell) were broken.
There were also other unexpected behavious such as when there was multiple empty lines.

     ▒    <- C-a here

█  fooo   <- cursor moved to here

I rolled back to this version for temporary fix.

from crux.

I caused both issues mentioned here with my crux pull request #45. Change https://github.com/KarlFish/crux/blob/master/crux.el#L234 should be (search-forward-regexp line-start-regex (line-end-position) t)).

(line-end-position) stops the search from passing through all the empty lines. (thanks for the tip in your minibuffer)

t suppresses the message on search fail, but doesn't move to the line end. A non nil, non t arg would also suppress the message, but move to (line-end-position).

from crux.