$ git clone -n https://src.fedoraproject.org/rpms/rust-exitfailure.git /var/lib/mock/f40-build-2373476-60409/root/chroot_tmpdir/scmroot/rust-exitfailure
Cloning into '/var/lib/mock/f40-build-2373476-60409/root/chroot_tmpdir/scmroot/rust-exitfailure'...
$ git fetch origin a1a8e2c2bb6402b3958af07410d6fd03ce99e38d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-exitfailure
 * [new ref]         a1a8e2c2bb6402b3958af07410d6fd03ce99e38d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1a8e2c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild