Architecture specific change in rpms/kf5-libksieve.git

The package rpms/kf5-libksieve.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/kf5-libksieve.git/commit/?id=df955bd....

Change:
+ExclusiveArch: x86_64 %{arm}

Thanks.

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

commit df955bd8fd9f7d6131792ec445741338b4924023
Author: Troy Dawson 
Date:   Mon Jan 27 09:30:14 2020 -0800

Apply ExclusiveArch for RHEL8.  libical (and thus kcalendarcore) not on all arches for RHEL8.

diff --git a/kf5-libksieve.spec b/kf5-libksieve.spec
index 621d256..b0db32f 100644
--- a/kf5-libksieve.spec
+++ b/kf5-libksieve.spec
@@ -16,8 +16,13 @@ URL:     http://cgit.kde.org/%%7Bframework%7D.git
 %endif
 Source0:        http://download.kde.org/%%7Bstable%7D/applications/%%7Bversion%7D/src/%%7Bfr...

+# libical (and thus kcalendarcore) not on all arches for RHEL8.
+%if 0%{?rhel} == 8
+ExclusiveArch: x86_64 %{arm}
+%else
 # handled by qt5-srpm-macros, which defines %%qt5_qtwebengine_arches
 %{?qt5_qtwebengine_arches:ExclusiveArch: %{qt5_qtwebengine_arches}}
+%endif

BuildRequires:  cmake(Qt5Network)
 BuildRequires:  cmake(Qt5Test)