$ git clone -n https://src.fedoraproject.org/rpms/python3.12.git /var/lib/mock/f40-build-2224471-52785/root/chroot_tmpdir/scmroot/python3.12
Cloning into '/var/lib/mock/f40-build-2224471-52785/root/chroot_tmpdir/scmroot/python3.12'...
$ git fetch origin 90929e6c2eae140ce937a679e88ee1caef0e1f77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3.12
 * [new ref]         90929e6c2eae140ce937a679e88ee1caef0e1f77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90929e6 Require python3-rpm-generators even when bootstrapping non-main Pythons