$ git clone -n https://src.fedoraproject.org/rpms/perl-Dancer2-Plugin-Database.git /var/lib/mock/f45-build-22815-594/root/chroot_tmpdir/scmroot/perl-Dancer2-Plugin-Database
Cloning into '/var/lib/mock/f45-build-22815-594/root/chroot_tmpdir/scmroot/perl-Dancer2-Plugin-Database'...
$ git fetch origin 75e891e03075ffe240008c4701fd8c9b4e001f78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Dancer2-Plugin-Database
 * [new ref]         75e891e03075ffe240008c4701fd8c9b4e001f78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75e891e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild