How to reproduce:
1. Open the attached "loopPointIssue" project and "Repro" scene
2. Inspect "player" GameObject, it has a Video Player Component with a "Repro" Video Clip attached. Observe that its Loop setting is unchecked
3. Open the Console window and enter playmode

Expected result - Video plays out, VideoPlayer.loopPointReached is being called only 1 time
Actual result - Video plays out, VideoPlayer.loopPointReached is being called 2 times

Reproducible with - 2017.3.0a7, 2017.2.0b10, 2017.1.0p5, 5.6.1p4

Reproducible on:
Windows 10 Pro, AMD FX(tm)-8350 (8 core) 4.00 GHz, AMD Radeon (TM) R7 360

Reproducible only on first play:
macOS Sierra, Intel Core i7 2.3Ghz, NVIDIA GeForce GT 750M 2048 Mb
Windows 10 Pro 64-bit, Intel(R) Core(TM) i5-4670 CPU @ 3.40GHz 3.40GHz, NVIDIA GeForce GTX 760

Does not reproduce at all:
Windows 10, Intel Core i7--4820K @ 3.7 GHz, Nvidia GeForce GTX 780

Note: Issue does not seem to reproduce if Loop setting is enabled

Fixed in - 2017.3.0b9