Bug: initialize of normal contracts does not resume properly

[JhChoy]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report  
[ ] Performance issue
[ ] Feature request
[ ] Documentation issue or request
[ ] Other... Please describe:

Current behavior

Assume there are 2 contracts: SecondA.sol, SecondB.sol

1. both of them have initialize functions
2. stopped after initialize function of SecondA called
3. resume
   => starts from initialize of SecondA

Expected behavior

=> starts from initialize of SecondB