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Bas Roos · Bas Roos · commit 5cc12cbfa147 · 2025-01-27T15:06:43.000+01:00
diff --git a/src/semver/version.py b/src/semver/version.py
@@ -255,7 +255,6 @@ def _increment_prerelease(string: str) -> str:
 
         :param string: the prerelease version to increment
         :return: the incremented string
-
         """
         match = Version._LAST_PRERELEASE.search(string)
         if match:
@@ -353,6 +352,8 @@ def bump_prerelease(
         '1'
         >>> ver.bump_prerelease(None).prerelease
         'rc.1'
+        >>> str(ver.bump_prerelease(bump_when_empty=True))
+        '3.4.6-rc.1'
         """
         cls = type(self)
         patch = self._patch
