Shevuot 11: The Red Heifer and Unconditional Sanctity

More on the animals that were consecrated for a year, yet not used within the year, and now what? The case of grain offerings is brought to determine what happens in the case of "t'vul yom," someone awaiting the end of the day for his dunking in a mikveh to take full effect. Also, physical sanctity of communal offerings can be conditional. As with the first case, what if the item isn't used, but before it's truly been sanctified? It's a dispute whether you can redeem the animals, let them out to pasture to incur a blemish, or to have to wait and let the animal die. Plus, the red heifer - parah adumah - can it really be conditional ?