$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-Event-ICal.git /var/lib/mock/f45-build-22937-595/root/chroot_tmpdir/scmroot/perl-DateTime-Event-ICal
Cloning into '/var/lib/mock/f45-build-22937-595/root/chroot_tmpdir/scmroot/perl-DateTime-Event-ICal'...
$ git fetch origin 75d6730480a998c9e38573722cb59eabee3274d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-Event-ICal
 * [new ref]         75d6730480a998c9e38573722cb59eabee3274d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75d6730 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild