Resolving build issues

Author: jkrrv

.github/workflows/Docs.yml

@@ -27,7 +27,6 @@ jobs:
       - name: Commit & Push to Wiki
         run:  |
           cd docs
-          git checkout master
           git config user.email "actions@github.com"
           git config user.name "GitHub Actions - update documentation"
           git add *.md

src/ScripturNumArray.php

@@ -226,6 +226,9 @@ public function key()
 	public function valid(): bool
 	{
 		$k = $this->key();
+        if ($k === null) {
+            $k = '';
+        }
 		return isset($this->container[$k]);
 	}
 

tests/ScripturNumProtectedTests.php

@@ -13,7 +13,6 @@ class ScripturNumProtectedTests extends TestCase {
 	public function invokeProtected($method, array $parameters = []) {
 		$reflection = new ReflectionClass(ScripturNum::class);
 		$method = $reflection->getMethod($method);
-		$method->setAccessible(true);
 		return $method->invokeArgs(null,$parameters);
 	}