At-mt swap on civic key is being held in ignition cylinder, WHY?

95 civic was originally an automatic but i converted it to manual trans. I changed the brake light switch then after checking my bulbs, the key wouldn't come out of the ignition. I disconnected the battery then the key was released and I was able to take it out.....HOW do i fix this??At-mt swap on civic key is being held in ignition cylinder, WHY?
I don't know the wiring on that, but the key cylinder does not believe the car is in Park so it does not release the key.

rodents

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