reset build dir each time

bedrock-linux-99.99.99-x86_64.sh

@@ -5,9 +5,8 @@
 if which brl > /dev/null 2>&1; then
 	echo "Fetching latest commits from repository..."
 	if [ -d /bedrock/cache/bedrocklinux-userland ]; then
-		cd /bedrock/cache/bedrocklinux-userland
-		git pull -q
-    else
+		less_lethal_rm_rf /bedrock/cache/bedrocklinux-userland
+	fi
     	mkdir -p /bedrock/cache
     	cd /bedrock/cache
     	git clone https://github.com/bedrocklinux/bedrocklinux-userland