While a new query was debouncing or validating, Find and Replace in Files kept showing the previous query's rows, count and highlights, and Replace stayed enabled. Replace, Replace All in This File and Replace All then sent the new pattern with the old positions, so `order` changed to `ord` could rewrite `order` as `Xer`.
From the moment query, flags, mask, scope or context change, old rows are dimmed and lose their highlights, replacement preview and count until the new search's first results arrive. All replace buttons and keyboard paths are blocked meanwhile, and a pending Replace All confirmation rechecks that its results are still current. Opening a retained row still works.
Refs #623
l0ng-ai
b281447da8