strange global behavior on c++ files

[Mikolaj Sitarz]

Hi,

recently I have found some strange behavior of global while working
with C++ files.
The situation:
foo.h:

class Foo {
 public:
        Foo();
        ~Foo();
};

then after indexing, I see everything is ok - result of "global -s -x"
shows 3 lines with "Foo".
However after adding file foo.cpp with the implementation of
constructor/destructor and rebuilding tags,
the result of "global -s -x" shows NOTHING. No any symbols found! (but
"global -x Foo" shows correctly results from foo.cpp).
Do you have idea of the reason of that behavior? Maybe some hints how to fix it?

Best regards
Mikolaj