Critical bug fix - always check to make sure m_currentMerkleTxHashes is not empty when iterating through while loop.
Critical bug fix - always check to make sure m_currentMerkleTxHashes is not empty when iterating through while loop.

Faldon/mSIGNA,Faldon/mSIGNA,ciphrex/mSIGNA,ciphrex/mSIGNA,ciphrex/mSIGNA