pyproject.toml

[tool.poetry]
name = "extrastesting"
version = "0.1.0"
description = ""
authors = ["Your Name <you@example.com>"]

[tool.poetry.dependencies]
python = "^3.7"
somedependency = { git = "https://github.com/mm-matthias/poetry-git-extras-bug.git", rev = "5be421140e58cb2d5f58abe86d118e48bc169c2c", extras = ["extrasruntime"] }
#somedependency = { path = "<yourcheckoutpath>/poetry-git-extras-bug", extras = ["extrasruntime"] }

[tool.poetry.dev-dependencies]
somedependency = { git = "https://github.com/mm-matthias/poetry-git-extras-bug.git", rev = "5be421140e58cb2d5f58abe86d118e48bc169c2c", extras = ["extrasdev"] }
#somedependency = { path = "<yourcheckoutpath>/poetry-git-extras-bug", extras = ["extrasdev"] }