Prep for 0.20.50.

NEWS

@@ -1,7 +1,4 @@
-0.20.49	UNRELEASED
-
-0.20.48	SKIPPED
-0.20.47	SKIPPED
+0.20.50	UNRELEASED
 
  * Fix Repo.reset_index.
    Previously, it instead took the union with the given tree.

dulwich/__init__.py

@@ -22,4 +22,4 @@
 
 """Python implementation of the Git file formats and protocols."""
 
-__version__ = (0, 20, 49)
+__version__ = (0, 20, 50)