$ git clone -n https://src.fedoraproject.org/rpms/mcpp.git /var/lib/mock/f40-build-1737239-24672/root/chroot_tmpdir/scmroot/mcpp
Cloning into '/var/lib/mock/f40-build-1737239-24672/root/chroot_tmpdir/scmroot/mcpp'...
$ git fetch origin 593e6544815d05b7c95ab1958bdf9f09b2867739:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mcpp
 * [new ref]         593e6544815d05b7c95ab1958bdf9f09b2867739 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 593e654 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild