$ git clone -n https://src.fedoraproject.org/rpms/rust-hamcrest2.git /var/lib/mock/f40-build-2651911-66888/root/chroot_tmpdir/scmroot/rust-hamcrest2
Cloning into '/var/lib/mock/f40-build-2651911-66888/root/chroot_tmpdir/scmroot/rust-hamcrest2'...
$ git fetch origin d8e4f89a7f4ce4bea6006b487ecefc99d67c26ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-hamcrest2
 * [new ref]         d8e4f89a7f4ce4bea6006b487ecefc99d67c26ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8e4f89 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild