patch 8.2.4498: using <Plug> with "noremap" does not work
Problem: Using <Plug> with "noremap" does not work.
Solution: Always remap <Plug>. (closes #9879, closes #9789)
diff --git a/src/testdir/test_mapping.vim b/src/testdir/test_mapping.vim
index 35db436..6421058 100644
--- a/src/testdir/test_mapping.vim
+++ b/src/testdir/test_mapping.vim
@@ -1536,4 +1536,34 @@
set encoding=utf-8
endfunc
+" Test for <Plug> always being mapped, even when used with "noremap".
+func Test_plug_remap()
+ let g:foo = 0
+ nnoremap <Plug>(Increase_x) <Cmd>let g:foo += 1<CR>
+ nmap <F2> <Plug>(Increase_x)
+ nnoremap <F3> <Plug>(Increase_x)
+ call feedkeys("\<F2>", 'xt')
+ call assert_equal(1, g:foo)
+ call feedkeys("\<F3>", 'xt')
+ call assert_equal(2, g:foo)
+ nnoremap x <Nop>
+ nmap <F4> x<Plug>(Increase_x)x
+ nnoremap <F5> x<Plug>(Increase_x)x
+ call setline(1, 'Some text')
+ normal! gg$
+ call feedkeys("\<F4>", 'xt')
+ call assert_equal(3, g:foo)
+ call assert_equal('Some text', getline(1))
+ call feedkeys("\<F5>", 'xt')
+ call assert_equal(4, g:foo)
+ call assert_equal('Some te', getline(1))
+ nunmap <Plug>(Increase_x)
+ nunmap <F2>
+ nunmap <F3>
+ nunmap <F4>
+ nunmap <F5>
+ unlet g:foo
+ %bw!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab