Question juridique clé
Whether admissible grounds for revision under Arts. 121-123 BGG were shown
Solution extraite
No admissible revision ground was substantiated; the request merely reargued the merits of the prior judgment.
Motifs extraits
The alleged overlooked facts and the claimed hearing violation were used to attack the substance of judgment 5A_758/2008, not to demonstrate a revision ground within Arts. 121-123 BGG.