DEPM: do not fix cursor pit if it was in a different cell

This bug has been here forever.

Fixes bug #12117.

(cherry-picked from 939d25561d)

src/Text2.cpp

@@ -925,6 +925,7 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
 		if (cur.depth() >= old.depth()) {
 			CursorSlice & curslice = cur[old.depth() - 1];
 			if (&curslice.inset() == &old.inset()
+			    && curslice.idx() == old.idx()
 			    && curslice.pit() > old.pit()) {
 				--curslice.pit();
 				// since a paragraph has been deleted, all the

status.23x

@@ -78,6 +78,8 @@ What's new
 
 - Disable direct insertion of multiple spaces in mathed text (bug 1311).
 
+- Fix crash in tabular when an empty paragraph is removed
+  automatically (bug 12117).
 
 
 * INTERNALS