fix(es_extended/server/modules/createJob): cache only the grades that were inserted

A grade that already exists in the database is skipped for the insert, but it
was still written to ESX.Jobs. A second CreateJob call therefore replaced the
stored name, label and salary in memory while the row itself kept the old
values, and the two only agreed again after a restart. CreateJob now caches
just the grades it inserted.

Label and type of an existing job come from the database for the same reason.
The grade lookup compares strings, so passing grade "1" for an existing grade 1
no longer inserts a second row.

[core]/es_extended/server/modules/createJob.lua

@@ -52,14 +52,17 @@ function ESX.CreateJob(name, label, grades, jobType)
         jobType = "civ"
     end
 
-    local jobExists = MySQL.scalar.await('SELECT 1 FROM `jobs` WHERE `name` = ?', { name }) ~= nil
+    local existingJob = MySQL.single.await('SELECT `label`, `type` FROM `jobs` WHERE `name` = ?', { name })
+    local jobExists = existingJob ~= nil
     local existingGrades = {}
 
     if jobExists then
+        label, jobType = existingJob.label, existingJob.type
+
         local rows = MySQL.query.await('SELECT `grade` FROM `job_grades` WHERE `job_name` = ?', { name })
 
         for i = 1, #(rows or {}) do
-            existingGrades[rows[i].grade] = true
+            existingGrades[tostring(rows[i].grade)] = true
         end
     end
 
@@ -72,8 +75,11 @@ function ESX.CreateJob(name, label, grades, jobType)
         }
     end
 
+    local newGrades = {}
+
     for _, grade in pairs(grades) do
-        if not existingGrades[grade.grade] then
+        if not existingGrades[tostring(grade.grade)] then
+            newGrades[#newGrades + 1] = grade
             queries[#queries + 1] = {
                 query = 'INSERT INTO job_grades (job_name, grade, name, label, salary, skin_male, skin_female) VALUES (?, ?, ?, ?, ?, ?, ?)',
                 values = { name, grade.grade, grade.name, grade.label, grade.salary, grade.skin_male and json.encode(grade.skin_male) or '{}', grade.skin_female and json.encode(grade.skin_female) or '{}' }
@@ -93,7 +99,7 @@ function ESX.CreateJob(name, label, grades, jobType)
         return success
     end
 
-    ESX.Jobs[name] = generateNewJobTable(name, label, grades, jobType)
+    ESX.Jobs[name] = generateNewJobTable(name, label, newGrades, jobType)
 
     notify("SUCCESS", currentResourceName, 'Job created successfully: `%s`', name)