extractSpan returns a recording span

[duncanpo]

According to help text:
SP = opentelemetry.trace.Context.extractSpan(CTXT) extracts
span SP from a context object CTXT. SP is a nonrecording span
such that ISRECORDING(SP) returns false

However, when actually called in MATLAB, the returned span is a recording span:

tp = opentelemetry.sdk.trace.TracerProvider;
tr = tp.getTracer("foo")
;
sp = tr.startSpan("bar");
sc = makeCurrent(sp);
ctx = opentelemetry.context.getCurrentContext;
sp2 = opentelemetry.trace.Context.extractSpan(ctx);
isRecording(sp2)

ans =

logical

1

[duncanpo]

This is an error in the documentation. extractSpan returns a recording span.