Ensure state of devutils is reflected in poetry.lock

Ref. eng/recordflux/RecordFlux!1490

Makefile

@@ -182,6 +182,10 @@ BUILD_DEPS = $(DEVEL_VENV)/lib/python$(PYTHON_VERSION)/site-packages/langkit
 $(BUILD_DEPS):: export PYTHONPATH=
 $(BUILD_DEPS): $(CONTRIB) $(DEVEL_VENV) $(PROJECT_MANAGEMENT)
 	$(POETRY) install -v --no-root --only=build
+	@# Ensure that the state of devutils is correctly reflected in the lock file when changes are made.
+	@# For some reason, the command needs to be run twice to get a deterministic result.
+	$(POETRY) add --group=dev "./$(DEVUTILS_DIR)[devel]"
+	$(POETRY) add --group=dev "./$(DEVUTILS_DIR)[devel]"
 
 # --- Setup: Langkit-based parser ---
 

doc/development_guide/index.rst

@@ -90,7 +90,6 @@ Alternatively, RecordFlux can be executed also via Poetry by executing `.venv.po
 
 Poetry locks the dependencies to ensure deterministic test results.
 `poetry lock` creates the lock file `poetry.lock` based on the dependencies listed in `pyproject.toml`.
-If `devutils` has been changed, execute `poetry add --group=dev "./devutils[devel]"` to correctly reflect its state in the lock file.
 
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