$ git clone -n https://src.fedoraproject.org/rpms/rust-git-absorb.git /var/lib/mock/f40-build-2395931-60536/root/chroot_tmpdir/scmroot/rust-git-absorb
Cloning into '/var/lib/mock/f40-build-2395931-60536/root/chroot_tmpdir/scmroot/rust-git-absorb'...
$ git fetch origin ea77a87f634a18c26b75d5d4d852c2d7c8215137:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-git-absorb
 * [new ref]         ea77a87f634a18c26b75d5d4d852c2d7c8215137 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea77a87 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild