fix(api/buffer): fix handling of viewport of non-current buffer

A lot of functions in move.c only worked for curwin, alternatively
took a `wp` arg but still only work if that happens to be curwin.

Refactor those that are needed for update_topline(wp) to work
for any window.

fixes #27723
fixes #27720

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nvim/mark.c b/src/nvim/mark.c
index 34e35a8277..0ecdd88ebd 100644
--- a/src/nvim/mark.c
+++ b/src/nvim/mark.c
@@ -588,7 +588,7 @@ MarkMoveRes mark_move_to(fmark_T *fm, MarkMove flags)
   }
 
   if (res & kMarkSwitchedBuf || res & kMarkChangedCursor) {
-    check_cursor();
+    check_cursor(curwin);
   }
 end:
   return res;