Accidental double posts happen sometimes.

The rules for deciding tie are a lot like RL Champs League (very complicated)
But if there is a tie in points, the head to head amongst tied teams is the consideration for tie breaking..:

If The following criteria are applied to determine the rankings (in descending order):
a) higher number of points obtained in the group matches played among the teams in question
b) superior goal difference from the group matches played among the teams in question
c) higher number of goals scored in the group matches played among the teams in question
d) higher number of goals scored away from home in the group matches played among the teams in question

e) If after having applied criteria a) to d), two teams still have an equal ranking,
criteria a) to d) are reapplied to determine the final ranking of the two teams.

If this procedure does not lead to a decision, criteria f) to g) apply:
f) superior goal difference from all group matches played
g) higher number of goals scored from all group matches played