$ git clone -n https://src.fedoraproject.org/rpms/rust-hashbrown0.13.git /var/lib/mock/f40-build-2150391-50896/root/chroot_tmpdir/scmroot/rust-hashbrown0.13
Cloning into '/var/lib/mock/f40-build-2150391-50896/root/chroot_tmpdir/scmroot/rust-hashbrown0.13'...
$ git fetch origin 8cd6b97839f792d41cea3966f5dfd8cf40edd5bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-hashbrown0.13
 * [new ref]         8cd6b97839f792d41cea3966f5dfd8cf40edd5bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cd6b97 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild