$ git clone -n http://git.inferitos.ru/rpms/perl-MIME-Base64 /var/lib/mock/inferit-10_0-bootstrap-build-69036-150685/root/chroot_tmpdir/scmroot/perl-MIME-Base64
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-69036-150685/root/chroot_tmpdir/scmroot/perl-MIME-Base64'...
$ git fetch origin changed/i10c-beta/perl-MIME-Base64-3.16-510.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/perl-MIME-Base64
 * [new tag]         changed/i10c-beta/perl-MIME-Base64-3.16-510.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d52d2ff import perl-MIME-Base64-3.16-510.el10