[LyX/2.3.x] Fix loop while separating

[Juergen Spitzmueller]

commit 9b603d90c8611aba2326f1e5ef40f880692cb68f
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sat Jan 13 09:59:09 2018 +0100

    Fix loop while separating
    
    getMaxDepthAfter() gives wrong result here.
    
    Fixes: #10979
    
    Signed-off-by: Juergen Spitzmueller <sp...@lyx.org>
    (cherry picked from commit bceaa7f92971f62014da43557815479d40adf551)
---
 src/Text3.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Text3.cpp b/src/Text3.cpp
index 0eebbc0..777f79f 100644
--- a/src/Text3.cpp
+++ b/src/Text3.cpp
@@ -1555,9 +1555,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                if ((outer || normal) && nextpar_depth > 0) {
                        // restore nesting of following paragraph
                        DocIterator scur = cur;
-                       depth_type const max_depth = 
cur.paragraph().getMaxDepthAfter();
+                       depth_type const max_depth = 
cur.paragraph().params().depth() + 1;
                        cur.forwardPar();
-                       while (cur.paragraph().params().depth() <= 
min(nextpar_depth, max_depth))
+                       while (cur.paragraph().params().depth() < 
min(nextpar_depth, max_depth))
                                
lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
                        cur.setCursor(scur);
                }