Fix collapse multiple ids target (#38989)

Author: louismaximepiton

js/src/dom/selector-engine.js

@@ -26,10 +26,10 @@ const getSelector = element => {
       hrefAttribute = `#${hrefAttribute.split('#')[1]}`
     }
 
-    selector = hrefAttribute && hrefAttribute !== '#' ? hrefAttribute.trim() : null
+    selector = hrefAttribute && hrefAttribute !== '#' ? parseSelector(hrefAttribute.trim()) : null
   }
 
-  return parseSelector(selector)
+  return selector
 }
 
 const SelectorEngine = {

js/tests/unit/dom/selector-engine.spec.js

@@ -359,6 +359,18 @@ describe('SelectorEngine', () => {
       expect(SelectorEngine.getMultipleElementsFromSelector(testEl)).toEqual(Array.from(fixtureEl.querySelectorAll('.target')))
     })
 
+    it('should get elements if several ids are given', () => {
+      fixtureEl.innerHTML = [
+        '<div id="test" data-bs-target="#target1,#target2"></div>',
+        '<div class="target" id="target1"></div>',
+        '<div class="target" id="target2"></div>'
+      ].join('')
+
+      const testEl = fixtureEl.querySelector('#test')
+
+      expect(SelectorEngine.getMultipleElementsFromSelector(testEl)).toEqual(Array.from(fixtureEl.querySelectorAll('.target')))
+    })
+
     it('should get elements in array, from href if no data-bs-target set', () => {
       fixtureEl.innerHTML = [
         '<a id="test" href=".target"></a>',