RestProtocol will be failed to export.

[Jeff-Lv]

What is the purpose of the change

ProviderModel must be init before doExportUrls to fix the REST protocol issue.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@f5be817). Click here to learn what that means.
The diff coverage is 100%.

@@           Coverage Diff            @@
##             master   #2965   +/-   ##
========================================
  Coverage          ?     64%           
========================================
  Files             ?     584           
  Lines             ?   26059           
  Branches          ?    4562           
========================================
  Hits              ?   16678           
  Misses            ?    7203           
  Partials          ?    2178

Impacted Files	Coverage Δ
...org/apache/dubbo/rpc/filter/ActiveLimitFilter.java	78.12% <ø> (ø)
...in/java/org/apache/dubbo/config/ServiceConfig.java	54.31% <100%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f5be817...6594dc2. Read the comment docs.