$ git clone -n http://git.inferitos.ru/rpms/rubygem-diff-lcs /var/lib/mock/inferit-8_8-build-27630-46213/root/chroot_tmpdir/scmroot/rubygem-diff-lcs
Cloning into '/var/lib/mock/inferit-8_8-build-27630-46213/root/chroot_tmpdir/scmroot/rubygem-diff-lcs'...
$ git fetch origin changed/i8c/rubygem-diff-lcs-1.3-4.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rubygem-diff-lcs
 * [new tag]         changed/i8c/rubygem-diff-lcs-1.3-4.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff5412e edit changelog for import rubygem-diff-lcs-1.3-4.el8