$ git clone -n https://src.fedoraproject.org/rpms/libpeas.git /var/lib/mock/f40-build-2254109-54223/root/chroot_tmpdir/scmroot/libpeas
Cloning into '/var/lib/mock/f40-build-2254109-54223/root/chroot_tmpdir/scmroot/libpeas'...
$ git fetch origin 20a2fd45c8140198d078abe6850eb5561a770ebe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libpeas
 * [new ref]         20a2fd45c8140198d078abe6850eb5561a770ebe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20a2fd4 Update to 2.0.1