public void unrelateAcrossR603From(Statement_c target, boolean notifyChanges) {
if (target == null) return;
if (IsSupertypeStatement == null) return; // already unrelated
if (target != IsSupertypeStatement) {
Exception e = new Exception();
e.fillInStackTrace();
CorePlugin.logError("Tried to unrelate from non-related instance across R603", e);
return;
}
if (target != null) {
target.clearBackPointerR603To(this);
}
if (IsSupertypeStatement != null) {
m_statement_id = IsSupertypeStatement.getStatement_id();
IsSupertypeStatement = null;
target.removeRef();
}
}
