$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTimeX-Easy.git /var/lib/mock/f45-build-23056-595/root/chroot_tmpdir/scmroot/perl-DateTimeX-Easy
Cloning into '/var/lib/mock/f45-build-23056-595/root/chroot_tmpdir/scmroot/perl-DateTimeX-Easy'...
$ git fetch origin 63cc1a2b8fcb41747a399d52e3770fdcd76a3fe4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTimeX-Easy
 * [new ref]         63cc1a2b8fcb41747a399d52e3770fdcd76a3fe4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63cc1a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild