Master servers running the latest version 20170909 will now include the BrandMeister repeater callsign in the APRS digipath packets sent to the APRSgate.
To illustrate this, see the before/after examples below.
2017-09-10 07:33:02 MSK: PA0WCH>APRS,DMR*,qAS,PI1DMR-10:@043258h5123.03N/00526.95E(036/000Will-Christian
AFTER: (see how the DB0CJ repeater callsign is now apparent)
2017-09-10 07:32:36 MSK: DC6RN-9>APRS,DB0CJ,DMR*,qAR,DB0CJ:@043233h4925.11N/01152.85Ev148/000Norbert
Note that this will only work if the repeater is directly connected to the BrandMeister server having the particular APRSGate.