$ git clone -n https://src.fedoraproject.org/rpms/bismuth.git /var/lib/mock/f39-build-1510735-35507/root/chroot_tmpdir/scmroot/bismuth
Cloning into '/var/lib/mock/f39-build-1510735-35507/root/chroot_tmpdir/scmroot/bismuth'...
$ git fetch origin 8d44e47353abb1ca215152907854510d74aad759:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bismuth
 * [new ref]         8d44e47353abb1ca215152907854510d74aad759 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d44e47 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild