https://github.com/micrometer-metrics/micrometer/blob/8d5aac964bf0f5c44d1c51cd343eaaa77ff7459c/micrometer-core/src/main/java/io/micrometer/core/instrument/step/StepMeterRegistry.java#L162C54-L165

https://github.com/micrometer-metrics/micrometer/blob/main/micrometer-core/src/main/java/io/micrometer/core/instrument/push/PushMeterRegistry.java#L40

When closing step registries before completion of the first step, there are 2 publishes happening. It is because isDataPublishedForCurrentStep() returns false when called before first publishing as lastPublishTime is 0.