bool checkForRemap(IProxyDict *sg, SG::sgkey_t sgkey_in, size_t index_in, SG::sgkey_t &sgkey_out, size_t &index_out)
See if an EL is being remapped.
virtual bool tryELRemap(sgkey_t sgkey_in, size_t index_in, sgkey_t &sgkey_out, size_t &index_out)
Test to see if the target of an ElementLink has moved.