Donation bug/exploit?

This morning i found something special.
I was online before the maintenance, and when i checked the guild i found my weekly contribution was already reset after the weekly bloodstones calculation began, but at that point, i was able to do donations and support researches. So i did, and it increased to 125 (silver, gold, honour and normal research). Then, AFTER the reset i found i’m also able to do so, again, both 4 contributions stacking with what i did before, so now i have 250 contribution in total
i added a picture showing i was able to donate after the weekly distribution and once again later on, along with my current contribution.

is this done purposedly, is it a bug… or am i just being lucky and able to donate twice the same day?