fix bulk progress bars

[MattShirley]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 97.82609% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 98.32%. Comparing base (e761557) to head (7c7bc21).

Files with missing lines	Patch %	Lines
servicex/query_cache.py	96.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #718      +/-   ##
==========================================
- Coverage   98.35%   98.32%   -0.04%     
==========================================
  Files          30       30              
  Lines        2191     2209      +18     
==========================================
+ Hits         2155     2172      +17     
- Misses         36       37       +1     

Flag	Coverage Δ
unittests	98.32% <97.82%> (-0.04%)	⬇️

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[ArturU043]

I tested this with the same query showed in #703
I updated it to use this PR branch.

The Jupyter cell output does show all transform requests immediately

The backend dashboard is completely populated a few seconds after calling deliver().
This fixes the delay problem.

However, on the dashboard, I see 362 requests starting while the client should have sent 364 (this may be unrelated)