patch 8.1.2338: using Visual mark sith :s gives E20 if not set
Problem: Using Visual mark sith :s gives E20 if not set.
Solution: Ignore errors when handling 'incsearch'. (closes #3837)
diff --git a/src/testdir/dumps/Test_incsearch_substitute_14.dump b/src/testdir/dumps/Test_incsearch_substitute_14.dump
new file mode 100644
index 0000000..c319856
--- /dev/null
+++ b/src/testdir/dumps/Test_incsearch_substitute_14.dump
@@ -0,0 +1,9 @@
+|a+1&#ffffff0|s+0&&|d|f|a+0&#ffff4012|s+0&#ffffff0|d|f| @61
+|~+0#4040ff13&| @68
+|~| @68
+|[+3#0000000&|N|o| |N|a|m|e|]| |[|+|]| @38|1|,|1| @11|A|l@1
+|b+0&&|s|d|f|b|s|d|f| @61
+|~+0#4040ff13&| @68
+|[+1#0000000&|N|o| |N|a|m|e|]| |[|+|]| @38|1|,|1| @11|A|l@1
+|:+0&&|'|<|,|'|>|s|/|a|/|b|/|g> @56
+@70
diff --git a/src/testdir/test_search.vim b/src/testdir/test_search.vim
index 190755a..1876713 100644
--- a/src/testdir/test_search.vim
+++ b/src/testdir/test_search.vim
@@ -983,6 +983,19 @@
call VerifyScreenDump(buf, 'Test_incsearch_substitute_12', {})
call term_sendkeys(buf, "\<Esc>")
call VerifyScreenDump(buf, 'Test_incsearch_substitute_13', {})
+ call term_sendkeys(buf, ":%bwipe!\<CR>")
+ call term_sendkeys(buf, ":only!\<CR>")
+
+ " get :'<,'>s command in history
+ call term_sendkeys(buf, ":set cmdheight=2\<CR>")
+ call term_sendkeys(buf, "aasdfasdf\<Esc>")
+ call term_sendkeys(buf, "V:s/a/b/g\<CR>")
+ " Using '<,'> does not give E20
+ call term_sendkeys(buf, ":new\<CR>")
+ call term_sendkeys(buf, "aasdfasdf\<Esc>")
+ call term_sendkeys(buf, ":\<Up>\<Up>")
+ call VerifyScreenDump(buf, 'Test_incsearch_substitute_14', {})
+ call term_sendkeys(buf, "<Esc>")
call StopVimInTerminal(buf)
call delete('Xis_subst_script')