Poetry Dependency Resolution Issue while Dependency extras with source

private-package-b's pyproject.toml

[tool.poetry]
name = "private-package-b"
version = "0.0.0"
description = ""

[tool.poetry.dependencies]
private-package-a = { version = "*", source = "source-a" }

[[tool.poetry.source]]
name = "source-a"
priority = "explicit"

repo-a's pyproject.toml

[tool.poetry]
name = "repo-a"
version = "0.0.0"
description = ""

[tool.poetry.dependencies]
private-package-a = { version = "*", source = "source-a", extras = ["extra-a"] }
private-package-b = { version = "*", source = "source-a" }

[[tool.poetry.source]]
name = "source-a"
priority = "explicit"