Component group with minecraft:navigation.walk crashes world

Verification builds:

Ver. 1.6.0

Summary:

**When an enderman (other mobs not tested) has two components groups. group Attack and group Cinametic (see world file). whereby the Attack group has an component: "minecraft:navigation.walk": { "can_float": false, "avoid_water": true }.

when you spawn in a enderman. it should spawn in with neither of these components groups already active. when an enderman then is given a gold_block to activate a event to remove/add components groups (see behaviourpack in world file). it removes the attack group and add the cinmatic group, even though there should be no Attack group. when the  "minecraft:navigation.walk": { "can_float": false, "avoid_water": true }, is present in the attack group then the world crashes. is it not present then nothing happens.

Impact:

Can't use  "minecraft:navigation.walk": { "can_float": false, "avoid_water": true }, in components groups.

Repro Steps:

• press button in world

Observed Results:

• world crash

Expected Results:

• no crash

Screenshots/Videos attached: Yes/No

https://www.youtube.com/watch?v=uIo62j4JALY&feature=youtu.be

Regression Build

Unknown

Notes: