[LyX/master] Update previews after doing a find/replace (#7242)

[Scott Kostyshak]

commit 66f527e417de916105680696bd44d7ad91ff60cb
Author: Scott Kostyshak <skost...@lyx.org>
Date:   Sat Apr 18 21:40:43 2015 -0400

    Update previews after doing a find/replace (#7242)
    
    This commit addresses #7242 for normal Find/Replace. That issue was
    fixed for Advanced Find at 29948eec.

diff --git a/src/lyxfind.cpp b/src/lyxfind.cpp
index f3b3eef..e0a7868 100644
--- a/src/lyxfind.cpp
+++ b/src/lyxfind.cpp
@@ -386,6 +386,7 @@ bool lyxreplace(BufferView * bv,
                else
                        bv->message(_("String not found."));
        }
+       bv->buffer().updatePreviews();
        return update;
 }