fix(xo-server/store): store.get returns a promise (#4776)

Fixes xoa-support#2137

CHANGELOG.unreleased.md

@@ -11,6 +11,8 @@
 
 > Users must be able to say: “I had this issue, happy to know it's fixed”
 
+- [Self,IP pools] Fixed the creation being stuck and freezing XO (PR [#4776](https://github.com/vatesfr/xen-orchestra/pull/4776))
+
 ### Released packages
 
 > Packages will be released in the order they are here, therefore, they should

packages/xo-server/src/xo-mixins/store.js

@@ -4,7 +4,7 @@ import { ensureDir } from 'fs-extra'
 
 // ===================================================================
 
-const _levelHas = function has(key, cb) {
+const _levelHas = async function has(key, cb) {
   if (cb) {
     return this.get(key, (error, value) =>
       error ? (error.notFound ? cb(null, false) : cb(error)) : cb(null, true)
@@ -12,7 +12,7 @@ const _levelHas = function has(key, cb) {
   }
 
   try {
-    this.get(key)
+    await this.get(key)
     return true
   } catch (error) {
     if (!error.notFound) {