[PCB_Print] Text vars generated in the same run didn't show up

Fixes #280

CHANGELOG.md

@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Problems with filtered/modified PCBs
   - Problems with zones on multiple layers (#226)
   - Problems with `hide_excluded: true` and components not in the SCH (#258)
+  - Text vars generated in the same run didn't show up (#280)
 - SCH Variants on KiCad 6: Problems with missing values in the title block.
 - Report: Converted file wasn't stored at `dir` (#238)
 - Datasheet download: Time-outs on some servers expecting modern browsers (#240)

kibot/pre_set_text_variables.py

@@ -8,11 +8,12 @@ Dependencies:
   - from: Git
     role: Find commit hash and/or date
 """
-import os
-import sys
 import json
+import os
+import pcbnew
 import re
 from subprocess import run, PIPE
+import sys
 from .error import KiPlotConfigurationError
 from .misc import FAILED_EXECUTE, W_EMPTREP
 from .optionable import Optionable
@@ -147,5 +148,9 @@ class Set_Text_Variables(BasePreFlight):  # noqa: F821
         GS.make_bkp(pro_name)
         with open(pro_name, 'wt') as f:
             f.write(json.dumps(data, sort_keys=True, indent=2))
+        # Force a project reload
+        sm = pcbnew.GetSettingsManager()
+        sm.UnloadProject(GS.board.GetProject(), False)
+        assert sm.LoadProject(pro_name)
         # Force the PCB reload (will reload the project file)
         GS.board = None