[Plugin: Find replace] Replace string changed randomly

This is not random, but a built in security.

WP has a function to prevent all this and it is called before replacement:

//Is magic quotes on?
		// https://codex.www.ads-software.com/Function_Reference/stripslashes_deep
		if ( get_magic_quotes_gpc() ) {
			$_POST = array_map( 'stripslashes_deep', $_POST );
		}