Rebase API review follow-ups

- Add rebase, Rebase and RebaseOperation to __all__
- RebaseOperationType docstring: operations are seen when iterating
  over or indexing a Rebase, there is no next() method
- RebaseOperation.id docstring: for EXEC operations this is the zero
  OID (falsy), matching libgit2's by-value git_oid field

Assisted-by: Kimi K3

Author: jdavid

pygit2/__init__.py

@@ -917,6 +917,9 @@ def filter_unregister(name: str) -> None:
     'IndexEntry',
     'packbuilder',
     'PackBuilder',
+    'rebase',
+    'Rebase',
+    'RebaseOperation',
     'refspec',
     'remotes',
     'Remote',

pygit2/enums.py

@@ -999,7 +999,8 @@ class Option(IntEnum):
 
 
 class RebaseOperationType(IntEnum):
-    """Type of rebase operation in-progress after calling Rebase.next()."""
+    """Type of a rebase operation, as returned when iterating over or
+    indexing a Rebase."""
 
     PICK = C.GIT_REBASE_OPERATION_PICK
     """The given commit is to be cherry-picked.  The client should commit

pygit2/rebase.py

@@ -59,8 +59,8 @@ def __init__(self, type: RebaseOperationType, id: Oid, exec: 'str | None') -> No
         'The type of rebase operation.'
 
         self.id = id
-        """The commit ID being cherry-picked.  This will be populated for
-        all operations except those of type RebaseOperationType.EXEC."""
+        """The commit ID being cherry-picked.  For operations of type
+        RebaseOperationType.EXEC this is the zero OID."""
 
         self.exec = exec
         """The executable the user has requested be run.  This will only