Architecture specific change in rpms/rust-witx.git

The package rpms/rust-witx.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/rust-witx.git/commit/?id=48da6e8b2ee....

Change:
+ExclusiveArch:  %{rust_arches}

Thanks.

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

commit 48da6e8b2ee982a100f6243ad61a3ec7dd3b8902
Author: Olivier Lemasle 
Date:   Mon Jun 28 14:40:58 2021 +0200

Initial import (#1972159)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6332a60
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/WASI-d4d3df3072b65ce43cb01c1add72b402d69a79d1.tar.gz
+/witx-0.9.1.crate
diff --git a/rust-witx.spec b/rust-witx.spec
new file mode 100644
index 0000000..ce665c9
--- /dev/null
+++ b/rust-witx.spec
@@ -0,0 +1,88 @@
+# Generated by rust2rpm 17
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate witx
+
+%global repo   https://github.com/WebAssembly/WASI
+%global commit d4d3df3072b65ce43cb01c1add72b402d69a79d1
+
+Name:           rust-%{crate}
+Version:        0.9.1
+Release:        1%{?dist}
+Summary:        Parse and validate witx file format
+
+# Upstream license specification: Apache-2.0
+License:        ASL 2.0
+URL:            https://crates.io/crates/witx
+Source0:         %{crates_source}
+# Source tarball from git repository (used for tests)
+Source1:        %{repo}/archive/%{commit}/WASI-%{commit}.tar.gz
+
+ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Parse and validate witx file format.}
+
+%description %{_description}
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel %{_description}
+
+This package contains library source intended for building other packages
+which use "%{crate}" crate.
+
+%files          devel
+%license LICENSE
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
+
+%package     -n %{name}+default-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+default-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "default" feature of "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%prep
+%autosetup -n %{crate}-%{version_no_tilde} -p1
+%cargo_prep
+# Untar WASI source tarball, which contains witx files used by tests
+tar zxf %{SOURCE1}
+# Move it outside the crate directory
+mv WASI-%{commit} ../WASI
+# Patch the relative path of witx test files, to use WASI source
+sed -i 's/../phases/WASI/phases/' tests/witxt/wasi.witxt
+
+%generate_buildrequires
+%cargo_generate_buildrequires
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%changelog
+* Wed Jun 23 2021 Olivier Lemasle  - 0.9.1-1
+- Update to upstream 0.9.1
+
+* Tue Jun 15 2021 Olivier Lemasle  - 0.9.0-1
+- Initial package
diff --git a/sources b/sources
new file mode 100644
index 0000000..24e320c
--- /dev/null
+++ b/sources
@@ -0,0 +1,2 @@
+SHA512 (WASI-d4d3df3072b65ce43cb01c1add72b402d69a79d1.tar.gz) = 55f8a6c0f5118dbe85a4bea128115d0f47bd0ce0f5433d0133efe6c1296dbacbff966ef76af79ac54ea5ec3498db6959fab98b5724dfa509eedd4db1d1332e3e
+SHA512 (witx-0.9.1.crate) = bd88171e5304e5249fb1429d918b6678dbb3da40eec0fd7fd1111adc097c43412c195bb4adc1ab85e112e53550a918fdcd4bb71e33ad2db028d030e7afe6d62a