$ git clone -n https://src.fedoraproject.org/rpms/python-environs.git /var/lib/mock/f45-build-30530-646/root/chroot_tmpdir/scmroot/python-environs
Cloning into '/var/lib/mock/f45-build-30530-646/root/chroot_tmpdir/scmroot/python-environs'...
$ git fetch origin 59b58d64354a8a6f8a91ed0e760dac0e060292cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-environs
 * [new ref]         59b58d64354a8a6f8a91ed0e760dac0e060292cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 59b58d6 Release 15.2.0