$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-Declare.git /var/lib/mock/f45-build-23066-595/root/chroot_tmpdir/scmroot/perl-Devel-Declare
Cloning into '/var/lib/mock/f45-build-23066-595/root/chroot_tmpdir/scmroot/perl-Devel-Declare'...
$ git fetch origin e9fade26bc35d059909f4a42555c2b2958a67621:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-Declare
 * [new ref]         e9fade26bc35d059909f4a42555c2b2958a67621 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9fade2 Perl 5.44 re-rebuild of bootstrapped packages