[hist] paint TH2 even if nEntries==0, as already happens for TH1 #17548
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Fixes root-project#14153 If you fill a TH1 using only AddBinContent, the resulting nEntries=0, and call Draw(), it works. If you fill a TH2 using only AddBinContent, the resulting nEntries=0, and call Draw("COLZ"), it does not work. This commit tries to fix it so that it also works.
Test Results 18 files 18 suites 3d 23h 14m 23s ⏱️ For more details on these failures, see this check. Results for commit cc21998. |
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This Pull request:
Changes or fixes:
If you fill a TH1 using only AddBinContent, the resulting nEntries=0, and call Draw(), it works. If you fill a TH2 using only AddBinContent, the resulting nEntries=0, and call Draw("COLZ"), it does not work. This commit tries to fix it so that it also works for the 2D case, for consistency.
Fixes #14153
Checklist: