$ git clone -n https://src.fedoraproject.org/rpms/perl-EV.git /var/lib/mock/f40-build-2221130-52679/root/chroot_tmpdir/scmroot/perl-EV
Cloning into '/var/lib/mock/f40-build-2221130-52679/root/chroot_tmpdir/scmroot/perl-EV'...
$ git fetch origin f4fe710081c992080b1c99079a026cbe3cba2ab3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-EV
 * [new ref]         f4fe710081c992080b1c99079a026cbe3cba2ab3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4fe710 Update to 4.34