Can perform infinite "double jumps" when JumpMaxHoldTime is greater than 0.

There's a bit of broken (or missing) logic in ACharacter that doesn't account for users having released the jump button. This is a well known issue, and there's even video's describing how users can overcome it:

[Link Removed]

Despite this, it seems better to have this work as expected by default.

1. Create a new project based off of First Person Shooter (can be either BP or C++).
2. In the default level, select the FirstPersonCharacter2 from the World Outliner.
3. Set the "Jump Max Hold Time" property to some value greater than 0.
4. Play level.
5. Jump, and repeatedly press and release the jump key.

Expectation: After the character has jumped the first time, nothing happens.

Actual: The character can repeatedly jump (forever).