$ git clone -n https://src.fedoraproject.org/rpms/scanmem.git /var/lib/mock/f39-build-1532606-36225/root/chroot_tmpdir/scmroot/scanmem
Cloning into '/var/lib/mock/f39-build-1532606-36225/root/chroot_tmpdir/scmroot/scanmem'...
$ git fetch origin 2a001f912b895a93d0c6fd8cfb6d6e626289740e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scanmem
 * [new ref]         2a001f912b895a93d0c6fd8cfb6d6e626289740e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a001f9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild