[MC-118127] Minecraft crashes at random ("Tesselating block model")

Minecraft crashes at random when I have a resource pack loaded with some 3D models

crash-2017-06-11_12.22.42-client.txt (1.12)

Description: Tesselating block model

java.lang.NullPointerException: Tesselating block model
	at axu.a(SourceFile:663)
	at ams.a(SourceFile:1873)
	at axu.a(SourceFile:636)
	at anb.a(SourceFile:68)
	at anb.r(SourceFile:60)
	at bii$5.a(SourceFile:52)
	at bii.a(SourceFile:190)
	at bvm.a(SourceFile:238)
	at bvm.c(SourceFile:113)
	at bvm.a(SourceFile:51)
	at bvm.a(SourceFile:42)
	at bvk.a(SourceFile:65)
	at bxp.b(SourceFile:178)
	at bxl.a(SourceFile:100)
	at bxl.run(SourceFile:43)
	at java.lang.Thread.run(Thread.java:745)