Steps to reproduce:
- create a new project
- create a new C++ header file 
- insert the following code into the header file:
#ifndef _NEWFILE_H
#define	_NEWFILE_H

class A {
    int a;
public:
    int getVal();
};

class B {
    int b;
public:
    int getVal();
};

#endif	/* _NEWFILE_H */

- collapse class A, class B, then the outer block (including #ifndef ...)
- put the cursor at the end of the collapsed statement and call "Code Folds->Expand Fold" from the context menu
Result: The cursor moves into the collapsed statement. No fold expands. If you click on the [+] on the left of the folds
then you can see that the class B got expanded. This happened while the first attempt to expand the fold.