fix(identify): reject string "undefined" and "null" in identify() and be more clear when rejecting#3285

marandaneto merged 1 commit intomainPostHog/posthog-js:mainfrom

pauldambra/reject-string-undefined-in-identifyPostHog/posthog-js:pauldambra/reject-string-undefined-in-identifyCopy head branch name to clipboard