movesite messes the tags on the links of mps

[jerhoud]

after calling movesite on a mps all the bonds involved have tags "Link, n=1" instead of the usual "Link, l = bondnumber". This problem also shows when applying multiple sites gates with apply (since it then calls movesite)

using ITensorMPS

s = siteinds("Qubit",3)
st = random_mps(s)
stm = movesite(st, 1=>3)

println(stm)

MPS
[1] ((dim=2|id=834|"Qubit,Site,n=2"), (dim=2|id=590|"Link,n=1"))
[2] ((dim=2|id=590|"Link,n=1"), (dim=2|id=502|"Qubit,Site,n=3"), (dim=2|id=864|"Link,n=1"))
[3] ((dim=2|id=864|"Link,n=1"), (dim=2|id=138|"Qubit,Site,n=1"))