patch 8.2.1902: default option values changed with :badd for existing buffer

Problem:    Default option values are changed when using :badd for an existing
            buffer.
Solution:   When calling buflist_new() pass a zero line number. (closes #7195)
diff --git a/src/version.c b/src/version.c
index 5a36f06..c2d6240 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1902,
+/**/
     1901,
 /**/
     1900,