$ git clone -n https://src.fedoraproject.org/rpms/perl-FCGI.git /var/lib/mock/f45-build-23447-597/root/chroot_tmpdir/scmroot/perl-FCGI
Cloning into '/var/lib/mock/f45-build-23447-597/root/chroot_tmpdir/scmroot/perl-FCGI'...
$ git fetch origin a54891a78d87938d4130a82d8d72430249b086d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-FCGI
 * [new ref]         a54891a78d87938d4130a82d8d72430249b086d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a54891a Perl 5.44 rebuild