$ git clone -n https://src.fedoraproject.org/rpms/rubygem-asciidoctor.git /var/lib/mock/f37-build-side-32-misc-devel-364625-15712/root/chroot_tmpdir/scmroot/rubygem-asciidoctor
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-364625-15712/root/chroot_tmpdir/scmroot/rubygem-asciidoctor'...
$ git reset --hard 8a5e9a406b42f6ec86e5b0080e1df33eb0a4042f
HEAD is now at 8a5e9a4 update to asciidoctor 2.0.17 (rhbz#2113688, FTBFS)