bytecode locks .bin file after entering homotopy.

Running ireland.mod triggers an exception Fatal error in bytecode: umfpack_dl_solve failed in the first iteration so that we enter homotopy mode. This it successful. But subsequently, the mod-file cannot be run a second time due to model/bytecode/dynamic.bin being locked. It seems that SparseMatrix.cc opens

        SaveCode.open(file_name + "/model/bytecode/dynamic.bin", ios::in | ios::binary);

but never closes it in case of an exception.