patch 9.0.1044: setting window height using Python may cause errors

Problem:    Setting window height using Python may cause errors.
Solution:   When setting "curwin" also set "curbuf". (closes #11687)
diff --git a/src/version.c b/src/version.c
index 0acd217..bc22ab1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1044,
+/**/
     1043,
 /**/
     1042,