ar-hit-test fails if controller button released before reticle is placed

[DougReeder]

Description:

• A-Frame Version: 1.4.2 and master
• Platform / Device: Any headset with AR capability and one or more controllers
• Reproducible Code Snippet or URL: https://aframe.io/examples/showcase/modelviewer/

1. click AR button to start AR mode
2. While ensuring the headset is never pointed toward a hit-test surface, press and release the select button (usually the trigger).

Expected result: reticle will still appear when headset is then pointed toward a hit-test surface
Actual result: reticle does not appear when headset is then pointed toward a hit-test surface

[dmarcos]

I don't think this was ever tested on headset. It was deved for handheld. QA and PRs super welcome

[gydence]

I am also experiencing this on multiple Android phones.