[Backport release-3_40] Fix freeze on long indexation for snapping on intersections #59498
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If snap on intersections is enabled, this specific edge search with the locator was not in relaxed mode, whereas the standard snapping is happening in relaxed mode. As a result, trying to use the snapping during the first indexation was freezing QGIS while the indexation is happening, waiting for it to end. On a layer where the indexation is longer than the timeout (30sec, i.e. a WFS layer as in issue #51179), the locator stops abruptly and resets itself, crashing the indexation and QGIS.
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troopa81
approved these changes
Nov 20, 2024
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Backport #59259
Authored by: @Djedouas