$ git clone -n https://src.fedoraproject.org/rpms/rust-wyz.git /var/lib/mock/f45-build-46263-832/root/chroot_tmpdir/scmroot/rust-wyz
Cloning into '/var/lib/mock/f45-build-46263-832/root/chroot_tmpdir/scmroot/rust-wyz'...
$ git fetch origin 5860c712c3235505a63756a5979fe0cefd2d92eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wyz
 * [new ref]         5860c712c3235505a63756a5979fe0cefd2d92eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5860c71 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild