Serial Programming and I2C port “conflict”

I'm designing a board in which an Attiny85 is connected to an accelerometer (MPU-6050) via I2C.

The I2C pins are in the ISP bus (SDA/MOSI, SCL/SCK). I wonder what happens to the accelerometer during programming of the MCU?

Are there any best practices I should follow? I considered just adding some solder jumpers, but I wonder if any precaution is even necessary.

Edit:

After finding out this is problematic, I'll try a solution based on Bruce Abbotts answer in another question.

The MPU-6050 may prevent you from programming the ATTiny successfully. It would interpret the ISP data as I²C and react accordingly. Expect interesting behaviuor on both SCL and SDA lines.