Avoid corruption when having selfclosing <w:sdtContent/> in the doc

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 3.19.4
+
+Avoid corruption when having self closing `<w:sdtContent/>` in the document.
+
 ### 3.19.3
 
 Throw an error when calling render on an invalid template.

es6/join-uncorrupt.js

@@ -30,6 +30,9 @@ function joinUncorrupt(parts, contains) {
 				return full;
 			}
 			if (currentlyCollecting === -1 && startTagRegex.test(part)) {
+				if (part[part.length - 2] === "/") {
+					return full;
+				}
 				currentlyCollecting = i;
 				collecting = part;
 				return full;

es6/tests/integration.js

@@ -416,6 +416,16 @@ describe("Table", function () {
 		shouldBeSame({ doc, expectedName: "expected-raw-xml.docx" });
 	});
 
+	it("should not corrupt document with selfclosing w:sdtContent tag", function () {
+		const doc = createDoc("self-closing-w-sdtcontent.docx");
+		doc.setData({});
+		doc.render();
+		shouldBeSame({
+			doc,
+			expectedName: "expected-self-closing-w-sdtcontent.docx",
+		});
+	});
+
 	it("should not corrupt loop containing section", function () {
 		const doc = createDoc("loop-with-section.docx");
 		doc.setData({