schemas annotation issue in v0.69.0

[anderseknert]

Originally reported by @garethahealy here. Thanks Gareth! It seems like there's a regression in how OPA handles schemas annotations in v0.69.0.

Minimal code to reproduce:

p.rego

package p

# METADATA
# schemas:
# - data.p.x: schema["nope"]
bug := data.p.x

There is of course no "nope" schema, but that shouldn't matter when we run opa check without providing any schemas. However:

OPA v0.68.0

$ opa check p.rego
(no output)

OPA v0.69.0

$ opa check p.rego
1 error occurred: p.rego:6: rego_type_error: undefined ref: data.p.x
	data.p.x
	       ^
	       have: "x"
	       want (one of): ["x"]

[tjons]

a rudimentary bisect with some testing reveals that 76f7038 is the source of the bug. I'll dig into it further and should have a fix this week

[anderseknert]

Excellent! Thanks @tjons 👍

[tjons]

Opened #7124 to fix!