$ git clone -n https://src.fedoraproject.org/rpms/blueprint-compiler.git /var/lib/mock/f40-build-2586613-62457/root/chroot_tmpdir/scmroot/blueprint-compiler
Cloning into '/var/lib/mock/f40-build-2586613-62457/root/chroot_tmpdir/scmroot/blueprint-compiler'...
$ git fetch origin adda07eff824fbd61f39ef36e7ee8b60f531f39e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blueprint-compiler
 * [new ref]         adda07eff824fbd61f39ef36e7ee8b60f531f39e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adda07e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild