I agree with the first part of what Tytanowy Janusz said, during crises people are known to stay away from higher risk assets and bitcoin being volatile doesn't help that either so it surely is not the "ultimate hedge" against the financial crisis.

but bitcoin being what it is, has always been acting separate from any other market. for example when other markets are falling bitcoin has been rising in the past or vice versa. it always moves on its own and on top of  that being a global asset it doesn't take effects from local incidents that much.
so in my opinion in case of a financial crisis bitcoin would either not be affected at all or rise at least a little.