$ git clone -n http://git.inferitos.ru/rpms/mpfr /var/lib/mock/inferit-10_0-bootstrap-build-73793-151167/root/chroot_tmpdir/scmroot/mpfr
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-73793-151167/root/chroot_tmpdir/scmroot/mpfr'...
$ git fetch origin changed/i10c-beta/mpfr-4.2.1-4.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mpfr
 * [new tag]         changed/i10c-beta/mpfr-4.2.1-4.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab484d4 import mpfr-4.2.1-4.el10