firebase cli --json output is truncated to 64000 bytes when piped to another command

[johncarter-phntm]

[REQUIRED] Environment info

firebase-tools: 9.10.0

Platform: Ubuntu 20.04

[REQUIRED] Test case

With a project where this outputs more than 64KB, run:

firebase ext:list --json | jq

This is failing for me, with the output truncating at 64000 bytes

[REQUIRED] Steps to reproduce

Enable several Firebase extensions in a project
Run a command that pipes the json output to another command, eg:
firebase ext:list --json | jq

(or maybe run any firebase cli command that supports --json output, and produces > 64KB).

[REQUIRED] Expected behavior

Valid json should be piped.

[REQUIRED] Actual behavior

When piped to another command the JSON seems to be terminated at 64000.

Using the unbuffer command seems to workaround this, but ideally this wouldn't be required.

eg, this works as expected:

unbuffer firebase ext:list --json | jq

[bkendall]

I can still see this happening. I'm not entirely sure why it's happening, but it should be something we can address. I'll do a little more digging at some point.