I know this is an very old topic, but I would like to correct it so people do not get confused.
What if i have a thunderbold (or so) attached to a staff/wand and get jinxed after that?
Does the Jinx force me to take back my attachment to my spellbook, when i try to quick cast the attack from the staff/wand?
No, it doesn't. You get your mana refunded and the spell still bound to the staff/wand.
FAQ - Jinx:
"If Jinx is used to counter a Spellbound spell, the spell card stays on the equipment to which it was Spellbound, as per the rules of Spellbind."
FAQ - Spellbind:
"If a bound spell is countered, the spell effect is canceled, but the bound spell still remains bound (it is not destroyed or discarded). This includes if the spell is canceled or fails, such as with a Jinx spell, or if the target changes or is moved."