$ git clone -n https://src.fedoraproject.org/rpms/bouncycastle.git /var/lib/mock/f40-build-2403524-60556/root/chroot_tmpdir/scmroot/bouncycastle
Cloning into '/var/lib/mock/f40-build-2403524-60556/root/chroot_tmpdir/scmroot/bouncycastle'...
$ git fetch origin 4901f95d2ed9af2272936e2004e70f9b92d5ead2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bouncycastle
 * [new ref]         4901f95d2ed9af2272936e2004e70f9b92d5ead2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4901f95 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild