$ git clone -n https://src.fedoraproject.org/rpms/perl-PDF-API2.git /var/lib/mock/f40-build-2019992-46583/root/chroot_tmpdir/scmroot/perl-PDF-API2
Cloning into '/var/lib/mock/f40-build-2019992-46583/root/chroot_tmpdir/scmroot/perl-PDF-API2'...
$ git fetch origin 8e8dc886e81e2412e6c3af20877bae15628c0165:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PDF-API2
 * [new ref]         8e8dc886e81e2412e6c3af20877bae15628c0165 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e8dc88 2.045 bump (rhbz#2240644)