"Link Existing" displays inconsistent results

[lbradley-mm]

Although the DB is updated correctly the return'd HTML from the POST shows (none) until you refresh the screen

When clicking "Link Existing" it makes 2 calls to set the relationship, the first one consistently shows (none) the second can be more of a race condition.

[christopherdarling]

this appears to be caused by https://github.com/silvershop/silverstripe-hasonefield/blob/main/client/src/legacy/hasonefield.js#L7-L12 there are two network requests called onclick, the code here to refresh the gridfield often executes before the database is updated with the new relation. a crude fix is adding a timeout sufficient for the other request to complete, maybe there is a better JS event that should be used instead of onclick