$ git clone -n https://src.fedoraproject.org/rpms/python-ibm-vpc.git /var/lib/mock/f45-build-31028-649/root/chroot_tmpdir/scmroot/python-ibm-vpc
Cloning into '/var/lib/mock/f45-build-31028-649/root/chroot_tmpdir/scmroot/python-ibm-vpc'...
$ git fetch origin 1a8f174e4b0721d17f8dfb472b7a6c9803aeff36:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ibm-vpc
 * [new ref]         1a8f174e4b0721d17f8dfb472b7a6c9803aeff36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a8f174 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild