$ git clone -n http://git.inferitos.ru/rpms/xcb-proto /var/lib/mock/inferit-8_8-build-27698-46213/root/chroot_tmpdir/scmroot/xcb-proto
Cloning into '/var/lib/mock/inferit-8_8-build-27698-46213/root/chroot_tmpdir/scmroot/xcb-proto'...
$ git fetch origin changed/i8c/xcb-proto-1.13-4.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/xcb-proto
 * [new tag]         changed/i8c/xcb-proto-1.13-4.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4fef5a4 edit changelog for import xcb-proto-1.13-4.el8