We have ways
Following yesterday's post about the pitfalls of 'mixed marriages', I think it's necessary to let you know one of the Jakartass mottos: Rules are made to be bent.
'Er Indoors and I were married under Islamic law. This did mean that I had to 'convert' as it was/is not legal for partners to have different religions. However, in following this route we didn't have to register with the Civil (meaning State as opposed to 'polite') Office.
We therefore have permission to live together, albeit without falling under the umbrella of the nationality law. On Our Kid's birth certificate I am recognised as the natural father, yet he is listed as having been born out of wedlock.
I have bought land but this is not in my name, which is okay by me as I can't take it with me.
As for being sponsored by one's spouse, it is perfectly legal to set up a limited company with Indonesian partners and foreigners being named as 'consultants'. These companies can then sponsor the expats; this is a well-worn route, particularly for expats making a living exporting furniture, handicrafts and herbs
Long-term residents generally find their own ways. For example, I know of one couple who have been married to each other three times. They get divorced shortly before the birth of their children. Under British law, children with a British parent can choose their nationality when they reach 18.
Any couples contemplating tying the knot would be well-advised to get in touch with the embassy
of the foreign partner.