patch 8.2.1700: Vim9: try/catch causes wrong value to be returned

Problem:    Vim9: try/catch causes wrong value to be returned.
Solution:   Reset tcd_return. (closes #6964)

src/testdir/test_vim9_script.vim

@@ -1169,6 +1169,26 @@ def Test_try_catch_nested()
   assert_equal('finally', g:in_finally)
 enddef
 
+def TryOne(): number
+  try
+    return 0
+  catch
+  endtry
+  return 0
+enddef
+
+def TryTwo(n: number): string
+  try
+    let x = {}
+  catch
+  endtry
+  return 'text'
+enddef
+
+def Test_try_catch_twice()
+  assert_equal('text', TryOne()->TryTwo())
+enddef
+
 def Test_try_catch_match()
   let seq = 'a'
   try

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1700,
 /**/
     1699,
 /**/

src/vim9execute.c

@@ -1922,6 +1922,7 @@ call_def_function(
 		    trycmd->tcd_catch_idx = iptr->isn_arg.try.try_catch;
 		    trycmd->tcd_finally_idx = iptr->isn_arg.try.try_finally;
 		    trycmd->tcd_caught = FALSE;
+		    trycmd->tcd_return = FALSE;
 		}
 		break;