$ git clone -n https://src.fedoraproject.org/rpms/dahdi-tools.git /var/lib/mock/f45-build-7229-361/root/chroot_tmpdir/scmroot/dahdi-tools
Cloning into '/var/lib/mock/f45-build-7229-361/root/chroot_tmpdir/scmroot/dahdi-tools'...
$ git fetch origin fe755ba1f8584f69054629a48df008b6b95fd106:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dahdi-tools
 * [new ref]         fe755ba1f8584f69054629a48df008b6b95fd106 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe755ba Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild