$ git clone -n https://src.fedoraproject.org/rpms/dirvish.git /var/lib/mock/f40-build-1994514-43801/root/chroot_tmpdir/scmroot/dirvish
Cloning into '/var/lib/mock/f40-build-1994514-43801/root/chroot_tmpdir/scmroot/dirvish'...
$ git fetch origin 3b4934cc75e7b3ef67d52d493c8cc10fac1518f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dirvish
 * [new ref]         3b4934cc75e7b3ef67d52d493c8cc10fac1518f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b4934c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild