$ git clone -n https://src.fedoraproject.org/rpms/python-shamir-mnemonic.git /var/lib/mock/f39-build-1556336-37182/root/chroot_tmpdir/scmroot/python-shamir-mnemonic
Cloning into '/var/lib/mock/f39-build-1556336-37182/root/chroot_tmpdir/scmroot/python-shamir-mnemonic'...
$ git fetch origin 81ff81f93028fee179261d4f637c1090dc368a5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-shamir-mnemonic
 * [new ref]         81ff81f93028fee179261d4f637c1090dc368a5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81ff81f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild