[ci/Travis] git fetch --unshallow before attempting to fetch tags
[ci/Travis] git fetch --unshallow before attempting to fetch tags

jrl-umi3218/sch-core,mehdi-benallegue/sch-core,mehdi-benallegue/sch-core,jrl-umi3218/sch-core,mehdi-benallegue/sch-core,jrl-umi3218/sch-core