From 796b1faca112390ab9732e5f9aea826abb110e5a Mon Sep 17 00:00:00 2001
From: pushkine <pushkine.github@gmail.com>
Date: Mon, 11 Jan 2021 11:00:43 +0100
Subject: [PATCH 1/2] init

---
 src/compiler/parse/state/tag.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/parse/state/tag.ts b/src/compiler/parse/state/tag.ts
index efeb9433bc8e..696a47b649fc 100644
--- a/src/compiler/parse/state/tag.ts
+++ b/src/compiler/parse/state/tag.ts
@@ -376,7 +376,7 @@ function read_attribute(parser: Parser, unique_names: Set<string>) {
 
 		if (type === 'Binding' && directive_name !== 'this') {
 			check_unique(directive_name);
-		} else if (type !== 'EventHandler') {
+		} else if (type !== 'EventHandler' && type !== 'Action') {
 			check_unique(name);
 		}
 

From 1903a74da46f5132b186b12e6f133b075eda13c5 Mon Sep 17 00:00:00 2001
From: pushkine <pushkine.github@gmail.com>
Date: Mon, 11 Jan 2021 11:24:08 +0100
Subject: [PATCH 2/2] test

---
 .../samples/action-duplicate/input.svelte     |  1 +
 .../samples/action-duplicate/output.json      | 34 +++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 test/parser/samples/action-duplicate/input.svelte
 create mode 100644 test/parser/samples/action-duplicate/output.json

diff --git a/test/parser/samples/action-duplicate/input.svelte b/test/parser/samples/action-duplicate/input.svelte
new file mode 100644
index 000000000000..11b251548322
--- /dev/null
+++ b/test/parser/samples/action-duplicate/input.svelte
@@ -0,0 +1 @@
+<input use:autofocus use:autofocus>
\ No newline at end of file
diff --git a/test/parser/samples/action-duplicate/output.json b/test/parser/samples/action-duplicate/output.json
new file mode 100644
index 000000000000..30469ceb4881
--- /dev/null
+++ b/test/parser/samples/action-duplicate/output.json
@@ -0,0 +1,34 @@
+{
+	"html": {
+		"start": 0,
+		"end": 35,
+		"type": "Fragment",
+		"children": [
+			{
+				"start": 0,
+				"end": 35,
+				"type": "Element",
+				"name": "input",
+				"attributes": [
+					{
+						"start": 7,
+						"end": 20,
+						"type": "Action",
+						"name": "autofocus",
+						"modifiers": [],
+						"expression": null
+					},
+					{
+						"start": 21,
+						"end": 34,
+						"type": "Action",
+						"name": "autofocus",
+						"modifiers": [],
+						"expression": null
+					}
+				],
+				"children": []
+			}
+		]
+	}
+}
\ No newline at end of file