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Werk #16300: Revert werk #16150 and fix IndexError: boolean index did not match indexed array along dimension 0 in forecast graphs

Component Metrics system
Title Revert werk #16150 and fix IndexError: boolean index did not match indexed array along dimension 0 in forecast graphs
Date Nov 23, 2023
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.3.0b1 Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.2.0p15 Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.1.0p37 Checkmk Pro, Checkmk Ultimate MT

This change reverts werk #16150, since this werk made forecast graphs basically unusable. Furthermore, this change fixes the error mentioned above. This error occurred when computing a forecast based on constant and incomplete input data.

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