Sulfur spring geysers can push players in creative mode who are flying

The Bug:

Sulfur spring geysers can push players in creative mode who are flying.

Players who are in creative mode and are flying are normally immune to being pushed by blocks. This is not the case with sulfur spring geysers.

Steps to Reproduce:

1. Construct a sulfur spring geyser and begin flying above it.

2. Wait for the geyser to activate and observe how you are pushed despite flying in creative mode.

Observed Behavior:

Sulfur spring geysers can push players in creative mode who are flying.

Expected Behavior:

Sulfur spring geysers would not be able to push players in creative mode who are flying.