Selector Engine: fix multiple IDs (#39201)

* fix: regression of #38989

* Add unit test in selector-engine.spec.js

---------

Co-authored-by: Julien Déramond <juderamond@gmail.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>

js/tests/unit/modal.spec.js

@@ -991,6 +991,35 @@ describe('Modal', () => {
         trigger.click()
       })
     })
+
+    it('should open modal, having special characters in its id', () => {
+      return new Promise(resolve => {
+        fixtureEl.innerHTML = [
+          '<button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#j_id22:exampleModal">',
+          '   Launch demo modal',
+          '</button>',
+          '<div class="modal fade" id="j_id22:exampleModal" aria-labelledby="exampleModalLabel" aria-hidden="true">',
+          '  <div class="modal-dialog">',
+          '    <div class="modal-content">',
+          '      <div class="modal-body">',
+          '        <p>modal body</p>',
+          '      </div>',
+          '    </div>',
+          '  </div>',
+          '</div>'
+        ].join('')
+
+        const modalEl = fixtureEl.querySelector('.modal')
+        const trigger = fixtureEl.querySelector('[data-bs-toggle="modal"]')
+
+        modalEl.addEventListener('shown.bs.modal', () => {
+          resolve()
+        })
+
+        trigger.click()
+      })
+    })
+
     it('should not prevent default when a click occurred on data-bs-dismiss="modal" where tagName is DIFFERENT than <a> or <area>', () => {
       return new Promise(resolve => {
         fixtureEl.innerHTML = [