Beacon effect duration is not shown as infinite when in range

The bug

When in the range of a beacon, a chosen status effect will indefinitely apply to a player.

Status effects which never expire are now marked with an infinity symbol. However, despite the fact that beacon effects never expire on a player within range, an infinity symbol does not appear to be used.

How to reproduce

1. Construct a beacon

2. Select an effect in the beacon

3. Enter the inventory screen and note the effect's duration (while in the range of the beacon)

Expected results

As the player is still in the beacon's area of effect, the effect's duration would display as infinite as it never expires. Only once the player leaves the beacon's effect range should it show a finite duration and start counting down to zero.

Actual results

The duration of the effect is not shown as infinite when in the beacon's range, but rather as a finite value which is periodically reset.