fix: Call ReplaceVars() to resolve Ref's for imported global vars. (#2632)

testdata/var_references/Taskfile.yml

@@ -2,6 +2,9 @@ version: '3'
 
 vars:
   GLOBAL_VAR: [1, 2, 2, 2, 3, 3, 4, 5]
+  GLOBAL_FOO:
+    ref: .GLOBAL_BAR
+  GLOBAL_BAR: bar
 
 tasks:
   default:
@@ -9,6 +12,7 @@ tasks:
     - task: ref-dep
     - task: ref-resolver
     - task: ref-resolver-sh
+    - task: ref-global
 
   ref-cmd:
     vars:
@@ -72,3 +76,13 @@ tasks:
           {{- else}} and {{$child.name -}}
           {{- end -}}
         {{- end -}}"
+
+  ref-global:
+    vars:
+      TASK_FUBAR:
+        ref: .GLOBAL_FOO
+    cmds:
+      - echo "GLOBAL_FOO={{.GLOBAL_FOO}}"
+      - echo "GLOBAL_BAR={{.GLOBAL_BAR}}"
+      - echo "TASK_FUBAR={{.TASK_FUBAR}}"
+    silent: true

testdata/var_references/testdata/TestReference-reference_using_templating_resolver_and_global_var.golden

@@ -0,0 +1,3 @@
+GLOBAL_FOO=bar
+GLOBAL_BAR=bar
+TASK_FUBAR=bar