$ git clone -n https://src.fedoraproject.org/rpms/dynamite.git /var/lib/mock/f40-build-2277059-55202/root/chroot_tmpdir/scmroot/dynamite
Cloning into '/var/lib/mock/f40-build-2277059-55202/root/chroot_tmpdir/scmroot/dynamite'...
$ git fetch origin bb5a0c107baf19f85fa7400fe4cef9541201ac78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dynamite
 * [new ref]         bb5a0c107baf19f85fa7400fe4cef9541201ac78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb5a0c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild