[LyX/master] Initialize variable to fix Counter 0 problem

[Vincent van Ravesteijn]

commit 3fb7394db8f02e80659eddb134e3ecddc0ba0cfe
Author: Vincent van Ravesteijn <v...@lyx.org>
Date:   Tue Apr 1 20:30:36 2014 +0200

    Initialize variable to fix Counter 0 problem
    
    Fixes: #9070

diff --git a/src/Counters.cpp b/src/Counters.cpp
index 5a6b922..5fb4f1b 100644
--- a/src/Counters.cpp
+++ b/src/Counters.cpp
@@ -182,7 +182,7 @@ Counter::StringMap & Counter::flatLabelStrings(bool 
in_appendix) const
 }
 
 
-Counters::Counters() : appendix_(false), subfloat_(false)
+Counters::Counters() : appendix_(false), subfloat_(false), longtable_(false)
 {
        layout_stack_.push_back(0);
        counter_stack_.push_back(from_ascii(""));