$ git clone -n https://src.fedoraproject.org/rpms/python-factory-boy.git /var/lib/mock/f41-build-side-2-python-2710015-30481/root/chroot_tmpdir/scmroot/python-factory-boy
Cloning into '/var/lib/mock/f41-build-side-2-python-2710015-30481/root/chroot_tmpdir/scmroot/python-factory-boy'...
$ git fetch origin 77e980d96086ff4e520b01403cf13e31f402d279:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-factory-boy
 * [new ref]         77e980d96086ff4e520b01403cf13e31f402d279 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77e980d Version 3.3.1 (RHBZ#2306033)