$ git clone -n https://src.fedoraproject.org/rpms/rust-prettyplease.git /var/lib/mock/f45-build-43996-809/root/chroot_tmpdir/scmroot/rust-prettyplease
Cloning into '/var/lib/mock/f45-build-43996-809/root/chroot_tmpdir/scmroot/rust-prettyplease'...
$ git fetch origin c823e7f0fe03e6e14d99603be6e1e128c15a78eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-prettyplease
 * [new ref]         c823e7f0fe03e6e14d99603be6e1e128c15a78eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c823e7f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild