From b1e415262099630a4cc49c6411fbca2abe85ec75 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Randy=20D=C3=B6ring?=
 <30527984+radoering@users.noreply.github.com>
Date: Wed, 24 Aug 2022 18:46:14 +0200
Subject: [PATCH] vcs_dependency: set implicit source reference

---
 src/poetry/core/packages/vcs_dependency.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/poetry/core/packages/vcs_dependency.py b/src/poetry/core/packages/vcs_dependency.py
index 2d7e10fbc..fec24da44 100644
--- a/src/poetry/core/packages/vcs_dependency.py
+++ b/src/poetry/core/packages/vcs_dependency.py
@@ -42,7 +42,7 @@ def __init__(
             allows_prereleases=True,
             source_type=self._vcs.lower(),
             source_url=self._source,
-            source_reference=branch or tag or rev,
+            source_reference=branch or tag or rev or "HEAD",
             source_resolved_reference=resolved_rev,
             source_subdirectory=directory,
             extras=extras,