$ git clone -n https://src.fedoraproject.org/rpms/rust-typed-arena.git /var/lib/mock/f40-build-2658359-66917/root/chroot_tmpdir/scmroot/rust-typed-arena
Cloning into '/var/lib/mock/f40-build-2658359-66917/root/chroot_tmpdir/scmroot/rust-typed-arena'...
$ git fetch origin d44385572d22fdad0dd1246d0c2ef6a2862c3cf3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-typed-arena
 * [new ref]         d44385572d22fdad0dd1246d0c2ef6a2862c3cf3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d443855 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild