$ git clone -n https://src.fedoraproject.org/rpms/rust-keccak.git /var/lib/mock/f39-build-1521905-35867/root/chroot_tmpdir/scmroot/rust-keccak
Cloning into '/var/lib/mock/f39-build-1521905-35867/root/chroot_tmpdir/scmroot/rust-keccak'...
$ git fetch origin 1b19ee64b6fa5be05f0cb1284239cb2c34332527:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-keccak
 * [new ref]         1b19ee64b6fa5be05f0cb1284239cb2c34332527 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b19ee6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild