$ git clone -n http://git.inferitos.ru/rpms/kernel /var/lib/mock/inferit-8_10-updates-build-90921-166333/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/inferit-8_10-updates-build-90921-166333/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin changed/i8/kernel-rt-4.18.0-553.37.1.rt7.378.el8_10:KOJI_FETCH_HEAD
fatal: couldn't find remote ref changed/i8/kernel-rt-4.18.0-553.37.1.rt7.378.el8_10
$ git reset --hard changed/i8/kernel-rt-4.18.0-553.37.1.rt7.378.el8_10
fatal: ambiguous argument 'changed/i8/kernel-rt-4.18.0-553.37.1.rt7.378.el8_10': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'