Sequencer particle toggle tracks evaluate one extra frame

It looks like particle toggle tracks use TimeRangeToNumberRange which gives the incorrect range as a result of CL 10893518 which fixed [Link Removed].

1. Download project in the linked UDN thread
2. Open the project in 4.25
3. PIE
4. Press enter to trigger the sequence to play

RESULT:
All particle systems deactivate when the sequence finishes.

EXPECTED:
The Fire_ParticleSystemEvaluationTest particle system would continue playing as the deactivate key is outside the playback range.