$ git clone -n https://src.fedoraproject.org/rpms/perl-PDF-API2-XS.git /var/lib/mock/f45-build-25502-611/root/chroot_tmpdir/scmroot/perl-PDF-API2-XS
Cloning into '/var/lib/mock/f45-build-25502-611/root/chroot_tmpdir/scmroot/perl-PDF-API2-XS'...
$ git fetch origin dc5778b3e4a886f18c9811d67191756982468008:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PDF-API2-XS
 * [new ref]         dc5778b3e4a886f18c9811d67191756982468008 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc5778b Perl 5.44 rebuild