Broadcast traffic generated on a member VLAN is replicated in every other active port of that VLAN as normal.
In addition, the member VLAN traffic is replicated to every active port in the translation VLAN and the VLAN tag is translated appropriately. Broadcast traffic generated on the translation VLAN is replicated to every other active port in this VLAN as usual. The caveat in this scenario is that this traffic is also replicated to every active port in every member VLAN, with VLAN tag translation. In effect, the broadcast traffic from the translation VLAN leaks onto all member VLANs.