$ git clone -n https://src.fedoraproject.org/rpms/rust-crc.git /var/lib/mock/f39-build-1526198-36059/root/chroot_tmpdir/scmroot/rust-crc
Cloning into '/var/lib/mock/f39-build-1526198-36059/root/chroot_tmpdir/scmroot/rust-crc'...
$ git fetch origin 34cc1bee67a1115a233e2fb98d7b145d071f45d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-crc
 * [new ref]         34cc1bee67a1115a233e2fb98d7b145d071f45d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34cc1be Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild