$ git clone -n https://src.fedoraproject.org/rpms/python-polib.git /var/lib/mock/f45-build-32023-656/root/chroot_tmpdir/scmroot/python-polib
Cloning into '/var/lib/mock/f45-build-32023-656/root/chroot_tmpdir/scmroot/python-polib'...
$ git fetch origin d007485cfe5f969ded66b38e9d0cb1a68d9e554f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-polib
 * [new ref]         d007485cfe5f969ded66b38e9d0cb1a68d9e554f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d007485 Use the newer python build macros in the spec file