patch 9.0.0734: cursor position invalid when scrolling with 'smoothscroll'
Problem: Cursor position invalid when scrolling with 'smoothscroll' set.
(Ernie Rael)
Solution: Add w_valid_skipcol and clear flags when it changes. Adjust
w_skipcol after moving the cursor.
diff --git a/src/testdir/test_scroll_opt.vim b/src/testdir/test_scroll_opt.vim
index 5bea957..48c81f2 100644
--- a/src/testdir/test_scroll_opt.vim
+++ b/src/testdir/test_scroll_opt.vim
@@ -248,5 +248,26 @@
call StopVimInTerminal(buf)
endfunc
+func Test_smoothscroll_one_long_line()
+ CheckScreendump
+
+ let lines =<< trim END
+ vim9script
+ setline(1, 'with lots of text '->repeat(7))
+ set smoothscroll scrolloff=0
+ END
+ call writefile(lines, 'XSmoothOneLong', 'D')
+ let buf = RunVimInTerminal('-S XSmoothOneLong', #{rows: 6, cols: 40})
+ call VerifyScreenDump(buf, 'Test_smooth_one_long_1', {})
+
+ call term_sendkeys(buf, "\<C-E>")
+ call VerifyScreenDump(buf, 'Test_smooth_one_long_2', {})
+
+ call term_sendkeys(buf, "0")
+ call VerifyScreenDump(buf, 'Test_smooth_one_long_1', {})
+
+ call StopVimInTerminal(buf)
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab