fix: undo accidental revert

Author: olemarius

packages/test-e2e/tests/e2e/specs/allow-space.js

@@ -1,8 +1,10 @@
 describe('with allow-space prop', () => {
   it('shows suggestions after typing mention containing space', () => {
     cy.visit('/allow-space')
-    cy.get('.input').type('abc @space ')
+    cy.get('.input').type('abc @space in')
     cy.get('.v-popper__popper').should('be.visible')
       .should('contain', 'space invader')
+    cy.get('.input').type('{enter}')
+    cy.get('.preview').should('contain', '@space invader')
   })
 })

packages/vue-mention/src/Mentionable.vue

@@ -267,8 +267,9 @@ export default defineComponent({
         if (!(keyIndex < 1 || /\s/.test(getValue()[keyIndex - 1]))) {
           return false
         }
-        const indexAtKey = props.allowSpace ? getValue()[index - 1] === key : true
-        if (text != null && indexAtKey) {
+        const keyIsBeforeCaret = getValue()[index - 1] === key
+        const shouldOpen = props.allowSpace ? isMentioning.value || keyIsBeforeCaret : true
+        if (text != null && shouldOpen) {
           openMenu(key, keyIndex)
           searchText.value = text
           return true