[TT-13405] Setting session in Go plugins ignores hashing config

[dragosussy]

v5.6.0-rc3

• Branch/Version: master

Describe the bug
The section of code called by ctx.SetSession sets the hashing configuration based on an array of booleans provided. If there's none provided, it will default to the tyk global configuration for hashing keys.

Reproduction steps
Steps to reproduce the behavior:

1. Implement Go auth_check plugin
2. Attempt to manually create and store a session with ctx.SetSession

Expected behavior
Providing one single argument for hashKey ...bool to the function correctly sets hashing configuration.

Actual behavior
2 or more arguments need to be provided in order to consider the hashKeys parameter.

Additional context
https://github.com/TykTechnologies/tyk/blob/v5.6.0-rc3/ctx/ctx.go#L111C1-L117C2
func SetSession(r *http.Request, s *user.SessionState, scheduleUpdate bool, hashKey ...bool) { if len(hashKey) > 1 { ctxSetSession(r, s, scheduleUpdate, hashKey[0]) } else { ctxSetSession(r, s, scheduleUpdate, config.Global().HashKeys) } }
My assumption would be that this is a simle change from len(hashKey) > 1 to len(hashKey) > 0.