$ git clone -n https://src.fedoraproject.org/rpms/mono-bouncycastle.git /var/lib/mock/f38-build-718669-96745/root/chroot_tmpdir/scmroot/mono-bouncycastle
Cloning into '/var/lib/mock/f38-build-718669-96745/root/chroot_tmpdir/scmroot/mono-bouncycastle'...
$ git fetch origin cb6b4cc788a978815b611db3171bc5144adc1a25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mono-bouncycastle
 * [new ref]         cb6b4cc788a978815b611db3171bc5144adc1a25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6b4cc Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild