mesh history climb for joints

## search for bind joints from this loop by climbing geo_target history
for geoHist in cmds.listHistory(geo_target):
    if cmds.nodeType(geoHist) == 'skinCluster':
        target_bnd_jnts = []
        for skinHist in cmds.listHistory(geoHist):
            if cmds.nodeType(skinHist) =='joint':
                target_bnd_jnts.append(skinHist)