The account-identity-proof profile a GroupContext (or, per-leaf, a LeafNode) classifies as: "current" (0x8009 required/present, no 0xf2f1), "legacy" (0xf2f1 required, no 0x8009), "mixed" (both), or "neither".
"current"
0x8009
0xf2f1
"legacy"
"mixed"
"neither"
The account-identity-proof profile a GroupContext (or, per-leaf, a LeafNode) classifies as:
"current"(0x8009required/present, no0xf2f1),"legacy"(0xf2f1required, no0x8009),"mixed"(both), or"neither".