It seems like any character that requires you to choose a subrace, OR lets you choose which abilities get a bonus lose ability bonuses when respeced from level one. Out of the characters I have right now, only Ember and Lann can keep their ability modifiers when respeced. Seelah, Woljif, Camellia, Daeran, and Nenio all lose the bonuses to their ability scores.
It seems like any character that requires you to choose a subrace, OR lets you choose which abilities get a bonus lose ability bonuses when respeced from level one. Out of the characters I have right now, only Ember and Lann can keep their ability modifiers when respeced. Seelah, Woljif, Camellia, Daeran, and Nenio all lose the bonuses to their ability scores.