tweaked pubkey for internal key from bitcoin/bitcoin#23371 has different negflag for TaggedHash("TapTweak/elements")

tweak.py

#!/usr/bin/env python3

from test_framework.key import TaggedHash, tweak_add_pubkey
from test_framework.script import OP_1, OP_TRUE, CScript, TaprootInfo, TaprootLeafInfo, taproot_tree_helper

pubkeys = [(1).to_bytes(32, 'big'), (2).to_bytes(32, 'big')]

pubkey = (1).to_bytes(32, 'big')
scripts = [(None, CScript([OP_TRUE]))]

for pubkey in pubkeys:
    print(pubkey.hex())
    ret, h = taproot_tree_helper(scripts)
    tweak = TaggedHash("TapTweak", pubkey + h)
    print(tweak.hex())
    tweaked, negated = tweak_add_pubkey(pubkey, tweak)
    leaves = dict((name, TaprootLeafInfo(script, version, merklebranch, leaf)) for name, version, script, merklebranch, leaf in ret)
    info = TaprootInfo(CScript([OP_1, tweaked]), pubkey, negated + 0, tweak, leaves, h, tweaked)
    print(info.negflag)

    ret, h = taproot_tree_helper(scripts)
    tweak = TaggedHash("TapTweak/elements", pubkey + h)
    print(tweak.hex())
    tweaked, negated = tweak_add_pubkey(pubkey, tweak)
    leaves = dict((name, TaprootLeafInfo(script, version, merklebranch, leaf)) for name, version, script, merklebranch, leaf in ret)
    info = TaprootInfo(CScript([OP_1, tweaked]), pubkey, negated + 0, tweak, leaves, h, tweaked)
    print(info.negflag)