$ git clone -n https://src.fedoraproject.org/rpms/perl-Snowball-Norwegian.git /var/lib/mock/f45-build-26197-616/root/chroot_tmpdir/scmroot/perl-Snowball-Norwegian
Cloning into '/var/lib/mock/f45-build-26197-616/root/chroot_tmpdir/scmroot/perl-Snowball-Norwegian'...
$ git fetch origin b8186dda689dd7df197f1cef61aa8608715d4ce3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Snowball-Norwegian
 * [new ref]         b8186dda689dd7df197f1cef61aa8608715d4ce3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8186dd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild