Architecture specific change in rpms/fedora-toolbox.git

The package rpms/fedora-toolbox.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
https://src.fedoraproject.org/cgit/rpms/fedora-toolbox.git/commit/?id=79d388....

Change:
+ExclusiveArch: aarch64 %{arm} ppc64le s390x x86_64

Thanks.

Full change:
============

commit 79d388a9e507b0cc5872dc84dc3b606e0bce150a
Author: Debarshi Ray 
Date:   Thu Oct 25 15:30:32 2018 +0000

Initial build

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ab37c14
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/fedora-toolbox-0.0.1.tar.xz
diff --git a/fedora-toolbox.spec b/fedora-toolbox.spec
new file mode 100644
index 0000000..01d5e12
--- /dev/null
+++ b/fedora-toolbox.spec
@@ -0,0 +1,52 @@
+Name:          fedora-toolbox
+Version:       0.0.1
+Release:       1%{?dist}
+Summary:       Toolbox containers & images for hacking on OSTree-based Fedoras
+
+License:       ASL 2.0
+URL:           https://github.com/debarshiray/fedora-toolbox
+Source0:       https://github.com/debarshiray/%%7Bname%7D/releases/download/%%7Bversion%7D/...
+
+BuildArch:     noarch
+# buildah and podman only work on the following architectures:
+ExclusiveArch: aarch64 %{arm} ppc64le s390x x86_64
+
+BuildRequires: meson
+
+Requires:      buildah
+Requires:      podman
+
+
+%description
+Fedora Toolbox is a tool that offers a familiar RPM based environment for
+developing and debugging software on locked down OSTree based Fedora systems
+like Silverblue. Such operating systems are shipped as immutable OSTree
+images, where it's difficult to setup a development environment with your
+favorite tools, editors and SDKs. A toolbox container solves that problem by
+providing a RPM based mutable container. You can tweak it to your heart's
+content and use DNF to install your favorite packages, all without worrying
+about breaking your operating system.
+
+
+%prep
+%autosetup
+
+
+%build
+%meson --buildtype=plain
+%meson_build
+
+
+%install
+%meson_install
+
+
+%files
+%doc NEWS README.md
+%license COPYING
+%{_bindir}/%{name}
+
+
+%changelog
+* Mon Oct 22 2018 Debarshi Ray  - 0.0.1-1
+- Initial build
diff --git a/sources b/sources
new file mode 100644
index 0000000..f8d4148
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (fedora-toolbox-0.0.1.tar.xz) = 3ccac2ddfb994e1fdad9f98a99e187658832668e2cd9a94a659687ad6ef1fae3197e4bb784d1bc7d023fe7532bc459f010a7df8455f17b8264a7fe029e9fe528