patch 9.0.1545: text not scrolled when cursor moved with "g0" and "h"

Problem:    Text not scrolled when cursor moved with "g0" and "h".
Solution:   Adjust w_skipcol when needed. (Luuk van Baal, closes #12387)
diff --git a/src/normal.c b/src/normal.c
index 2f3d12a..0720134 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -5762,6 +5762,7 @@
 	curwin->w_valid &= ~VALID_WCOL;
     }
     curwin->w_set_curswant = TRUE;
+    adjust_skipcol();
 }
 
 /*