$ git clone -n https://src.fedoraproject.org/rpms/rust-pin-project-internal.git /var/lib/mock/f45-build-43860-807/root/chroot_tmpdir/scmroot/rust-pin-project-internal
Cloning into '/var/lib/mock/f45-build-43860-807/root/chroot_tmpdir/scmroot/rust-pin-project-internal'...
$ git fetch origin 0999e4b026bceb4103c7384323dd8a92ab03735b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pin-project-internal
 * [new ref]         0999e4b026bceb4103c7384323dd8a92ab03735b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0999e4b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild