[TxMt] disable atomic saves?

Is there a 'defaults' option to disable atomic saves in TM2?

I host all my code on linux VM's on an ESXI server Usually I mount them via AFP, but Im ditching this now in favour of Samba

Since moving to SMB/CIFS, I'm finding TM2 is now frequently complaining that it cannot save a file due to 'Resource Busy'

When this happens, even restarting TM2 doesn't fix it, I have to restart the Samba service on the server (which isn't a great solution)

I think it may be somehow related to atomic saves, so Id like to disable those (given that I still have git to protect any aborted writes)

Thanks