$ git clone -n https://src.fedoraproject.org/rpms/perl-Snowball-Swedish.git /var/lib/mock/f45-build-26191-616/root/chroot_tmpdir/scmroot/perl-Snowball-Swedish
Cloning into '/var/lib/mock/f45-build-26191-616/root/chroot_tmpdir/scmroot/perl-Snowball-Swedish'...
$ git fetch origin b7157f688ce50c5e1e2c957a35af113b34977090:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Snowball-Swedish
 * [new ref]         b7157f688ce50c5e1e2c957a35af113b34977090 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7157f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild