$ git clone -n https://src.fedoraproject.org/rpms/rubygem-ruby-shadow.git /var/lib/mock/f40-build-2232802-53347/root/chroot_tmpdir/scmroot/rubygem-ruby-shadow
Cloning into '/var/lib/mock/f40-build-2232802-53347/root/chroot_tmpdir/scmroot/rubygem-ruby-shadow'...
$ git fetch origin 73d09480eb09ca1716a9f32b57c35fe3cbf51e86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-ruby-shadow
 * [new ref]         73d09480eb09ca1716a9f32b57c35fe3cbf51e86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73d0948 Rebuilt for https://fedoraproject.org/wiki/Changes/Ruby_3.3