Do not try to put cursor after space if no space was kept

The logic was wrong and could cause crashes

Fixes bug #11777.

src/Text2.cpp

@@ -797,8 +797,9 @@ void fixCursorAfterDelete(CursorSlice & cur, CursorSlice const & where,
 		return;
 
 	// If cursor position is after the deletion place update it
+	// but if we are not at start of line keep it after the space that was kept.
 	if (cur.pos() > from)
-		cur.pos() = max(from + 1, cur.pos() - num_chars);
+		cur.pos() = max(from + (from > 0), cur.pos() - num_chars);
 
 	// Check also if we don't want to set the cursor on a spot behind the
 	// pagragraph because we erased the last character.

status.23x

@@ -105,6 +105,8 @@ What's new
 - Avoid crash in some cases where a dialog is shown during operation
   (bug 11763).
 
+- Fix crash with nested insets when spaces are removed automatically (bug 11777).
+
 * INTERNALS