Do not compute global text&tags twice on reindex

[lferran]

Description

Describe the proposed changes made in this PR.

How was this PR tested?

Existing test suite

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.83%. Comparing base (cf972d8) to head (ea66b10).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2761      +/-   ##
==========================================
+ Coverage   86.79%   86.83%   +0.04%     
==========================================
  Files         384      384              
  Lines       24300    24300              
==========================================
+ Hits        21091    21102      +11     
+ Misses       3209     3198      -11     

Flag	Coverage Δ
nucliadb	74.65% <100.00%> (+0.06%)	⬆️
nucliadb-ingest	33.84% <100.00%> (ø)
nucliadb-reader	42.43% <100.00%> (ø)
nucliadb-search	43.48% <100.00%> (ø)
nucliadb-standalone	47.13% <100.00%> (ø)
nucliadb-train	45.39% <100.00%> (ø)
nucliadb-writer	39.29% <100.00%> (ø)
nucliadb_dataset	55.45% <ø> (ø)
nucliadb_models	83.29% <ø> (ø)
nucliadb_sdk	80.11% <ø> (ø)
nucliadb_sidecar	89.03% <ø> (ø)
nucliadb_telemetry	86.56% <ø> (ø)
nucliadb_utils	83.83% <ø> (ø)

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