RichConsoleSpanExporter infinite loop

Test script:

from time import sleep
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider, Resource
from opentelemetry.sdk.trace.export import (
   SimpleSpanProcessor,
)
from opentelemetry.exporter.richconsole import RichConsoleSpanExporter

provider = TracerProvider(resource=Resource(attributes={"service.name": "test"}))
processor = SimpleSpanProcessor(RichConsoleSpanExporter(service_name='test'))
provider.add_span_processor(processor)
trace.set_tracer_provider(provider)
tracer = trace.get_tracer(__name__)
with tracer.start_as_current_span("rootSpan"):
    with tracer.start_as_current_span("childSpan"):
        sleep(0.1)

For me it never finishes, it seems to be stuck in a loop in RichConsoleSpanExporter.spans_to_tree. Works fine with ConsoleSpanExporter.

Env:

opentelemetry-api==1.19.0
opentelemetry-exporter-otlp==1.19.0
opentelemetry-exporter-otlp-proto-common==1.19.0
opentelemetry-exporter-otlp-proto-grpc==1.19.0
opentelemetry-exporter-otlp-proto-http==1.19.0
opentelemetry-exporter-richconsole==0.40b0
opentelemetry-proto==1.19.0
opentelemetry-sdk==1.19.0
opentelemetry-semantic-conventions==0.40b0

Run the provided Python reproduction with RichConsoleSpanExporter and inspect RichConsoleSpanExporter.spans_to_tree, where the report identifies the infinite loop. Compare the behavior with ConsoleSpanExporter. Done means the reproduction finishes normally and the exporter still produces its expected output for the nested rootSpan and childSpan.