Fix bug with resume (#8912)

* Fix bug with resume * restore del on resume=false * Update train.py Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Fix bug with resume (#8912)
fd004f56 · Yana · GitHub · d1dfcab6 · fd004f56
--- a/train.py
+++ b/train.py
@@ -167,7 +167,8 @@ def train(hyp, opt, device, callbacks):  # hyp is path/to/hyp.yaml or hyp dictio
    # Resume
    best_fitness, start_epoch = 0.0, 0
    if pretrained:
-        best_fitness, start_epoch, epochs = smart_resume(ckpt, optimizer, ema, weights, epochs, resume)
+        if resume:
+            best_fitness, start_epoch, epochs = smart_resume(ckpt, optimizer, ema, weights, epochs, resume)
        del ckpt, csd
    # DP mode