$ git clone -n https://src.fedoraproject.org/rpms/desktop-file-utils.git /var/lib/mock/f40-build-2433920-60724/root/chroot_tmpdir/scmroot/desktop-file-utils
Cloning into '/var/lib/mock/f40-build-2433920-60724/root/chroot_tmpdir/scmroot/desktop-file-utils'...
$ git fetch origin 934315eee8d60b24c80672e91e7ebed62cc6ea05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/desktop-file-utils
 * [new ref]         934315eee8d60b24c80672e91e7ebed62cc6ea05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 934315e Fix the bogus date in my last commit