$ git clone -n https://src.fedoraproject.org/rpms/rust-pem2.git /var/lib/mock/f40-build-1821491-24912/root/chroot_tmpdir/scmroot/rust-pem2
Cloning into '/var/lib/mock/f40-build-1821491-24912/root/chroot_tmpdir/scmroot/rust-pem2'...
$ git fetch origin a56c71d664ef9a16e6dba2c0efcc1d10b8841130:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pem2
 * [new ref]         a56c71d664ef9a16e6dba2c0efcc1d10b8841130 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a56c71d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild