$ git clone -n https://src.fedoraproject.org/rpms/cronolog.git /var/lib/mock/f42-build-side-1-3586015-46913/root/chroot_tmpdir/scmroot/cronolog
Cloning into '/var/lib/mock/f42-build-side-1-3586015-46913/root/chroot_tmpdir/scmroot/cronolog'...
$ git fetch origin 4076d6bf14cc71c6d58b126cecc380e321220c0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cronolog
 * [new ref]         4076d6bf14cc71c6d58b126cecc380e321220c0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4076d6b Fix build and install compatibility issues (#2340013)